/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/seq-3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:52:23,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:52:23,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:52:23,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:52:23,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:52:23,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:52:23,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:52:23,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:52:23,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:52:23,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:52:23,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:52:23,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:52:23,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:52:23,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:52:23,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:52:23,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:52:23,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:52:23,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:52:23,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:52:23,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:52:23,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:52:23,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:52:23,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:52:23,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:52:23,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:52:23,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:52:23,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:52:23,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:52:23,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:52:23,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:52:23,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:52:23,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:52:23,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:52:23,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:52:23,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:52:23,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:52:23,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:52:23,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:52:23,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:52:23,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:52:23,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:52:23,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 23:52:23,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:52:23,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:52:23,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:52:23,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:52:23,729 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:52:23,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:52:23,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:52:23,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:52:23,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:52:23,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:52:23,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:52:23,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:52:23,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:52:23,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:52:23,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:52:23,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:52:23,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:52:23,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:52:23,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:52:23,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:52:23,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:52:23,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:52:23,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:52:23,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:52:23,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:52:23,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:52:23,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:52:23,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:52:23,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:52:23,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:52:24,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:52:24,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:52:24,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:52:24,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:52:24,050 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:52:24,050 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/seq-3.i [2020-10-14 23:52:24,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a231c94f3/42d9e84be7034957a0a0ff23e11fe2d4/FLAG4fbd5618c [2020-10-14 23:52:24,581 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:52:24,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/seq-3.i [2020-10-14 23:52:24,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a231c94f3/42d9e84be7034957a0a0ff23e11fe2d4/FLAG4fbd5618c [2020-10-14 23:52:24,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a231c94f3/42d9e84be7034957a0a0ff23e11fe2d4 [2020-10-14 23:52:24,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:52:25,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:52:25,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:52:25,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:52:25,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:52:25,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:24" (1/1) ... [2020-10-14 23:52:25,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c09893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25, skipping insertion in model container [2020-10-14 23:52:25,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:24" (1/1) ... [2020-10-14 23:52:25,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:52:25,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:52:25,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:52:25,278 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:52:25,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:52:25,309 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:52:25,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25 WrapperNode [2020-10-14 23:52:25,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:52:25,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:52:25,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:52:25,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:52:25,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... [2020-10-14 23:52:25,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... [2020-10-14 23:52:25,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... [2020-10-14 23:52:25,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... [2020-10-14 23:52:25,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... [2020-10-14 23:52:25,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... [2020-10-14 23:52:25,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... [2020-10-14 23:52:25,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:52:25,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:52:25,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:52:25,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:52:25,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:52:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:52:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:52:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 23:52:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 23:52:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:52:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:52:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:52:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 23:52:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 23:52:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:52:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:52:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:52:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:52:25,748 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:52:25,748 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 23:52:25,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:25 BoogieIcfgContainer [2020-10-14 23:52:25,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:52:25,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:52:25,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:52:25,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:52:25,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:24" (1/3) ... [2020-10-14 23:52:25,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691ee40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:25, skipping insertion in model container [2020-10-14 23:52:25,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:25" (2/3) ... [2020-10-14 23:52:25,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691ee40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:25, skipping insertion in model container [2020-10-14 23:52:25,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:25" (3/3) ... [2020-10-14 23:52:25,762 INFO L109 eAbstractionObserver]: Analyzing ICFG seq-3.i [2020-10-14 23:52:25,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:52:25,813 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:52:25,851 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:52:25,895 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:52:25,896 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:52:25,896 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:52:25,896 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:52:25,896 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:52:25,896 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:52:25,896 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:52:25,896 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:52:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-14 23:52:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 23:52:25,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:25,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:25,920 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:25,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:25,925 INFO L82 PathProgramCache]: Analyzing trace with hash 721338375, now seen corresponding path program 1 times [2020-10-14 23:52:25,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:25,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492325130] [2020-10-14 23:52:25,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:26,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:26,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:26,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 23:52:26,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:26,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 23:52:26,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:26,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:52:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:52:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:52:26,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:26,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:26,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:26,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:52:26,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:26,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:26,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:26,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492325130] [2020-10-14 23:52:26,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:26,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:52:26,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285333448] [2020-10-14 23:52:26,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:52:26,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:26,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:52:26,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:26,421 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2020-10-14 23:52:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:26,632 INFO L93 Difference]: Finished difference Result 56 states and 81 transitions. [2020-10-14 23:52:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:52:26,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-14 23:52:26,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:26,645 INFO L225 Difference]: With dead ends: 56 [2020-10-14 23:52:26,645 INFO L226 Difference]: Without dead ends: 28 [2020-10-14 23:52:26,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:52:26,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-14 23:52:26,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2020-10-14 23:52:26,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-14 23:52:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-10-14 23:52:26,696 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 16 [2020-10-14 23:52:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:26,696 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-14 23:52:26,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:52:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-10-14 23:52:26,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 23:52:26,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:26,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:26,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:52:26,698 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:26,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:26,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1230284105, now seen corresponding path program 1 times [2020-10-14 23:52:26,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:26,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407431620] [2020-10-14 23:52:26,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:26,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:26,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:26,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:52:26,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 23:52:26,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:26,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:52:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 23:52:26,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:52:26,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:26,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:26,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:26,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:26,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:26,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:26,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:26,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:52:26,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:26,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407431620] [2020-10-14 23:52:26,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:26,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:52:26,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512297730] [2020-10-14 23:52:26,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:52:26,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:26,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:52:26,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:52:26,933 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 6 states. [2020-10-14 23:52:27,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:27,028 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-10-14 23:52:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:52:27,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-14 23:52:27,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:27,031 INFO L225 Difference]: With dead ends: 35 [2020-10-14 23:52:27,031 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 23:52:27,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 23:52:27,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-10-14 23:52:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-14 23:52:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-10-14 23:52:27,047 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 17 [2020-10-14 23:52:27,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:27,047 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-10-14 23:52:27,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:52:27,048 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-10-14 23:52:27,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 23:52:27,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:27,050 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:27,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:52:27,050 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:27,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:27,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1577307176, now seen corresponding path program 1 times [2020-10-14 23:52:27,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:27,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493135543] [2020-10-14 23:52:27,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:27,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:27,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:27,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:52:27,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:27,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 23:52:27,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:27,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:52:27,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:27,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:52:27,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:27,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:27,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:27,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:27,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:27,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:27,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 23:52:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:27,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:27,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:27,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:27,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:27,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:52:27,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:27,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:27,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:27,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493135543] [2020-10-14 23:52:27,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:27,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:52:27,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688003256] [2020-10-14 23:52:27,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:52:27,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:27,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:52:27,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:52:27,313 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 9 states. [2020-10-14 23:52:27,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:27,488 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-10-14 23:52:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:52:27,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-10-14 23:52:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:27,492 INFO L225 Difference]: With dead ends: 51 [2020-10-14 23:52:27,492 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 23:52:27,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:52:27,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 23:52:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2020-10-14 23:52:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 23:52:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-10-14 23:52:27,502 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 24 [2020-10-14 23:52:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:27,502 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-10-14 23:52:27,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:52:27,502 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-10-14 23:52:27,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 23:52:27,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:27,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:27,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:52:27,504 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:27,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:27,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1925867353, now seen corresponding path program 1 times [2020-10-14 23:52:27,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:27,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267684631] [2020-10-14 23:52:27,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:27,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:27,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:27,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:52:27,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:27,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 23:52:27,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:27,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:52:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:52:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:52:27,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:27,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:27,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:27,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:27,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:27,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:27,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:27,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:27,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 23:52:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:27,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:27,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:27,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:27,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:52:27,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:27,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:27,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267684631] [2020-10-14 23:52:27,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:27,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:52:27,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970238539] [2020-10-14 23:52:27,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:52:27,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:27,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:52:27,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:52:27,721 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 9 states. [2020-10-14 23:52:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:27,894 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-10-14 23:52:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:52:27,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-10-14 23:52:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:27,896 INFO L225 Difference]: With dead ends: 61 [2020-10-14 23:52:27,897 INFO L226 Difference]: Without dead ends: 47 [2020-10-14 23:52:27,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:52:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-14 23:52:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2020-10-14 23:52:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-14 23:52:27,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-14 23:52:27,907 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2020-10-14 23:52:27,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:27,907 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-14 23:52:27,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:52:27,908 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-14 23:52:27,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 23:52:27,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:27,909 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:27,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:52:27,910 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:27,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1753041192, now seen corresponding path program 2 times [2020-10-14 23:52:27,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:27,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152096158] [2020-10-14 23:52:27,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:27,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:27,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:27,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 23:52:27,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 23:52:27,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:28,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:28,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:28,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:28,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 23:52:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:28,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:52:28,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:28,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152096158] [2020-10-14 23:52:28,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:28,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 23:52:28,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904762265] [2020-10-14 23:52:28,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:52:28,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:28,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:52:28,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:28,052 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-10-14 23:52:28,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:28,111 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2020-10-14 23:52:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:52:28,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-14 23:52:28,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:28,114 INFO L225 Difference]: With dead ends: 45 [2020-10-14 23:52:28,114 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 23:52:28,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:52:28,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 23:52:28,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-10-14 23:52:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-14 23:52:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-14 23:52:28,123 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 25 [2020-10-14 23:52:28,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:28,123 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-14 23:52:28,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:52:28,123 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-14 23:52:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 23:52:28,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:28,124 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:28,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:52:28,125 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:28,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2104735975, now seen corresponding path program 3 times [2020-10-14 23:52:28,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:28,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680607257] [2020-10-14 23:52:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 23:52:28,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 23:52:28,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:52:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 23:52:28,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:28,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:28,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:28,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 23:52:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:28,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:52:28,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:28,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:28,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:52:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:28,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:28,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:28,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 23:52:28,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680607257] [2020-10-14 23:52:28,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:28,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:52:28,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68616730] [2020-10-14 23:52:28,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:52:28,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:28,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:52:28,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:52:28,344 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 11 states. [2020-10-14 23:52:28,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:28,542 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2020-10-14 23:52:28,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:52:28,543 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-10-14 23:52:28,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:28,544 INFO L225 Difference]: With dead ends: 68 [2020-10-14 23:52:28,545 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 23:52:28,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 23:52:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2020-10-14 23:52:28,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 23:52:28,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-14 23:52:28,554 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 32 [2020-10-14 23:52:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:28,555 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-14 23:52:28,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:52:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-14 23:52:28,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 23:52:28,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:28,556 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:28,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 23:52:28,557 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:28,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:28,557 INFO L82 PathProgramCache]: Analyzing trace with hash 34379366, now seen corresponding path program 1 times [2020-10-14 23:52:28,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:28,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717063844] [2020-10-14 23:52:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:52:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 23:52:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:28,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:28,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:28,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 23:52:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:28,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:28,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:28,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:52:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:28,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:28,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,767 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 23:52:28,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717063844] [2020-10-14 23:52:28,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:28,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:52:28,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233752607] [2020-10-14 23:52:28,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:52:28,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:28,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:52:28,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:52:28,770 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 11 states. [2020-10-14 23:52:28,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:28,980 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2020-10-14 23:52:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 23:52:28,980 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-10-14 23:52:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:28,982 INFO L225 Difference]: With dead ends: 79 [2020-10-14 23:52:28,982 INFO L226 Difference]: Without dead ends: 62 [2020-10-14 23:52:28,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-14 23:52:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 40. [2020-10-14 23:52:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 23:52:28,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-14 23:52:28,992 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 32 [2020-10-14 23:52:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:28,992 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-14 23:52:28,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:52:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-14 23:52:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 23:52:28,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:28,994 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:28,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 23:52:28,994 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:28,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:28,995 INFO L82 PathProgramCache]: Analyzing trace with hash -2110616313, now seen corresponding path program 2 times [2020-10-14 23:52:28,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:28,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731215439] [2020-10-14 23:52:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 23:52:29,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 23:52:29,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:52:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:29,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 23:52:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:29,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:29,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:29,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 23:52:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:29,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:29,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:52:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:29,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:29,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:29,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 23:52:29,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731215439] [2020-10-14 23:52:29,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:29,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:52:29,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587510330] [2020-10-14 23:52:29,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:52:29,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:29,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:52:29,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:52:29,182 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 11 states. [2020-10-14 23:52:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:29,396 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2020-10-14 23:52:29,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 23:52:29,397 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-10-14 23:52:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:29,399 INFO L225 Difference]: With dead ends: 92 [2020-10-14 23:52:29,399 INFO L226 Difference]: Without dead ends: 75 [2020-10-14 23:52:29,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-14 23:52:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 42. [2020-10-14 23:52:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 23:52:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-10-14 23:52:29,410 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 32 [2020-10-14 23:52:29,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:29,410 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-10-14 23:52:29,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:52:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-10-14 23:52:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 23:52:29,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:29,412 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:29,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 23:52:29,412 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:29,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:29,412 INFO L82 PathProgramCache]: Analyzing trace with hash -713755753, now seen corresponding path program 4 times [2020-10-14 23:52:29,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:29,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153413624] [2020-10-14 23:52:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 23:52:29,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 23:52:29,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:52:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:52:29,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:29,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:29,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:29,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:52:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:29,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:29,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:29,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:29,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:52:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:29,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:29,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:29,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 23:52:29,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153413624] [2020-10-14 23:52:29,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:29,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 23:52:29,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800243647] [2020-10-14 23:52:29,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:52:29,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:29,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:52:29,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:52:29,556 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 8 states. [2020-10-14 23:52:29,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:29,623 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2020-10-14 23:52:29,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 23:52:29,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-10-14 23:52:29,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:29,625 INFO L225 Difference]: With dead ends: 55 [2020-10-14 23:52:29,625 INFO L226 Difference]: Without dead ends: 53 [2020-10-14 23:52:29,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:52:29,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-14 23:52:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2020-10-14 23:52:29,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-14 23:52:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-10-14 23:52:29,632 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 33 [2020-10-14 23:52:29,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:29,633 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-10-14 23:52:29,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:52:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-10-14 23:52:29,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 23:52:29,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:29,634 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:29,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 23:52:29,635 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:29,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:29,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1388738376, now seen corresponding path program 5 times [2020-10-14 23:52:29,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:29,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427477594] [2020-10-14 23:52:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 23:52:29,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 23:52:29,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 23:52:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 23:52:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:29,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:29,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:29,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:52:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:52:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:29,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:29,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:29,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:52:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:29,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:29,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,918 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:52:29,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427477594] [2020-10-14 23:52:29,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:29,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 23:52:29,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116054996] [2020-10-14 23:52:29,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:52:29,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:29,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:52:29,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:29,921 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 13 states. [2020-10-14 23:52:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:30,179 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2020-10-14 23:52:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 23:52:30,180 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-10-14 23:52:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:30,181 INFO L225 Difference]: With dead ends: 85 [2020-10-14 23:52:30,181 INFO L226 Difference]: Without dead ends: 65 [2020-10-14 23:52:30,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:52:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-14 23:52:30,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 50. [2020-10-14 23:52:30,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-14 23:52:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-10-14 23:52:30,195 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 40 [2020-10-14 23:52:30,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:30,196 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-10-14 23:52:30,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:52:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-10-14 23:52:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 23:52:30,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:30,199 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:30,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 23:52:30,200 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:30,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:30,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1629840839, now seen corresponding path program 2 times [2020-10-14 23:52:30,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:30,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218247135] [2020-10-14 23:52:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 23:52:30,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 23:52:30,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 23:52:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 23:52:30,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:30,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:30,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:30,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:30,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:30,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:52:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:30,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:30,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:30,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:30,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:30,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:30,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:52:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:30,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 23:52:30,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:30,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:30,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:52:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:30,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:30,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:30,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:30,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:30,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:52:30,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218247135] [2020-10-14 23:52:30,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:30,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 23:52:30,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220826558] [2020-10-14 23:52:30,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:52:30,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:30,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:52:30,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:30,507 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 13 states. [2020-10-14 23:52:30,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:30,867 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2020-10-14 23:52:30,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 23:52:30,869 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-10-14 23:52:30,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:30,871 INFO L225 Difference]: With dead ends: 100 [2020-10-14 23:52:30,871 INFO L226 Difference]: Without dead ends: 80 [2020-10-14 23:52:30,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-14 23:52:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-14 23:52:30,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 50. [2020-10-14 23:52:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-14 23:52:30,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-10-14 23:52:30,890 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 40 [2020-10-14 23:52:30,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:30,891 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-10-14 23:52:30,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:52:30,891 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-10-14 23:52:30,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 23:52:30,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:30,892 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:30,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 23:52:30,893 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:30,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:30,893 INFO L82 PathProgramCache]: Analyzing trace with hash -302044312, now seen corresponding path program 3 times [2020-10-14 23:52:30,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:30,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838962574] [2020-10-14 23:52:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 23:52:31,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 23:52:31,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 23:52:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 23:52:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:52:31,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:31,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:31,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:31,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:31,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:52:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:31,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:31,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:31,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:52:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:31,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:31,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:31,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:52:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:31,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:31,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:31,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:31,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,144 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:52:31,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838962574] [2020-10-14 23:52:31,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:31,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 23:52:31,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932111396] [2020-10-14 23:52:31,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:52:31,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:31,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:52:31,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:31,146 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 13 states. [2020-10-14 23:52:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:31,463 INFO L93 Difference]: Finished difference Result 114 states and 138 transitions. [2020-10-14 23:52:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:52:31,464 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-10-14 23:52:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:31,466 INFO L225 Difference]: With dead ends: 114 [2020-10-14 23:52:31,466 INFO L226 Difference]: Without dead ends: 94 [2020-10-14 23:52:31,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:52:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-14 23:52:31,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 50. [2020-10-14 23:52:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-14 23:52:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-10-14 23:52:31,477 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 40 [2020-10-14 23:52:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:31,477 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-10-14 23:52:31,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:52:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-10-14 23:52:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 23:52:31,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:31,478 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:31,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 23:52:31,479 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:31,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:31,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1611289177, now seen corresponding path program 3 times [2020-10-14 23:52:31,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:31,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932558911] [2020-10-14 23:52:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 23:52:31,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 23:52:31,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 23:52:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:31,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 23:52:31,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:31,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:31,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:31,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:52:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:31,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:31,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:31,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:52:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:31,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:31,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:52:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:31,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:31,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:52:31,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932558911] [2020-10-14 23:52:31,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:31,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 23:52:31,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563889390] [2020-10-14 23:52:31,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:52:31,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:31,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:52:31,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:31,773 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 13 states. [2020-10-14 23:52:32,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:32,071 INFO L93 Difference]: Finished difference Result 130 states and 160 transitions. [2020-10-14 23:52:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:52:32,072 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-10-14 23:52:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:32,073 INFO L225 Difference]: With dead ends: 130 [2020-10-14 23:52:32,073 INFO L226 Difference]: Without dead ends: 110 [2020-10-14 23:52:32,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-14 23:52:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-14 23:52:32,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 52. [2020-10-14 23:52:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-14 23:52:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-10-14 23:52:32,099 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 40 [2020-10-14 23:52:32,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:32,099 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-10-14 23:52:32,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:52:32,099 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-10-14 23:52:32,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 23:52:32,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:32,102 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:32,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 23:52:32,103 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:32,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:32,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1980104200, now seen corresponding path program 6 times [2020-10-14 23:52:32,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:32,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054611633] [2020-10-14 23:52:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 23:52:32,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 23:52:32,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:52:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 23:52:32,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:32,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:32,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:32,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:32,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:52:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:32,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:32,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:32,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:52:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:32,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:32,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:32,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:32,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:52:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:32,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,309 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:52:32,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054611633] [2020-10-14 23:52:32,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:32,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 23:52:32,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141531269] [2020-10-14 23:52:32,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:52:32,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:32,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:52:32,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:52:32,312 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 9 states. [2020-10-14 23:52:32,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:32,394 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2020-10-14 23:52:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:52:32,395 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-10-14 23:52:32,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:32,395 INFO L225 Difference]: With dead ends: 65 [2020-10-14 23:52:32,396 INFO L226 Difference]: Without dead ends: 63 [2020-10-14 23:52:32,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:52:32,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-14 23:52:32,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-10-14 23:52:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-14 23:52:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2020-10-14 23:52:32,405 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 41 [2020-10-14 23:52:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:32,405 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2020-10-14 23:52:32,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:52:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2020-10-14 23:52:32,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 23:52:32,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:32,406 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:32,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 23:52:32,406 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:32,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:32,407 INFO L82 PathProgramCache]: Analyzing trace with hash 459778503, now seen corresponding path program 7 times [2020-10-14 23:52:32,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:32,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718445964] [2020-10-14 23:52:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:52:32,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 23:52:32,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 23:52:32,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:32,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 23:52:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:32,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:32,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:32,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:52:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:32,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:32,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:32,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:32,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:52:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:32,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:32,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:32,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:32,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:52:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:32,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:32,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:52:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:32,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:32,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:32,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:32,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:52:32,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718445964] [2020-10-14 23:52:32,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:32,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:52:32,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413292014] [2020-10-14 23:52:32,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:52:32,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:32,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:52:32,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:52:32,738 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand 15 states. [2020-10-14 23:52:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:33,036 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2020-10-14 23:52:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 23:52:33,037 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-14 23:52:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:33,038 INFO L225 Difference]: With dead ends: 102 [2020-10-14 23:52:33,038 INFO L226 Difference]: Without dead ends: 79 [2020-10-14 23:52:33,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:52:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-14 23:52:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 60. [2020-10-14 23:52:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 23:52:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2020-10-14 23:52:33,047 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 48 [2020-10-14 23:52:33,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:33,047 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2020-10-14 23:52:33,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:52:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2020-10-14 23:52:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 23:52:33,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:33,048 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:33,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 23:52:33,048 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:33,049 INFO L82 PathProgramCache]: Analyzing trace with hash 418097478, now seen corresponding path program 4 times [2020-10-14 23:52:33,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:33,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986867029] [2020-10-14 23:52:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:52:33,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-14 23:52:33,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 23:52:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 23:52:33,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:33,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:33,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:33,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:52:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:33,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:52:33,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:33,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:33,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:52:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:33,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:33,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:33,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:33,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:33,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:52:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:33,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:33,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:33,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:52:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:33,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:33,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:33,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:33,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:33,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:52:33,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986867029] [2020-10-14 23:52:33,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:33,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:52:33,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555190342] [2020-10-14 23:52:33,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:52:33,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:33,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:52:33,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:52:33,382 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand 15 states. [2020-10-14 23:52:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:33,756 INFO L93 Difference]: Finished difference Result 121 states and 144 transitions. [2020-10-14 23:52:33,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 23:52:33,756 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-14 23:52:33,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:33,757 INFO L225 Difference]: With dead ends: 121 [2020-10-14 23:52:33,758 INFO L226 Difference]: Without dead ends: 98 [2020-10-14 23:52:33,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:52:33,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-14 23:52:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2020-10-14 23:52:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 23:52:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2020-10-14 23:52:33,768 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 48 [2020-10-14 23:52:33,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:33,769 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2020-10-14 23:52:33,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:52:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2020-10-14 23:52:33,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 23:52:33,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:33,770 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:33,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 23:52:33,770 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:33,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1522909721, now seen corresponding path program 5 times [2020-10-14 23:52:33,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:33,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010574121] [2020-10-14 23:52:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:52:33,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 23:52:33,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 23:52:33,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:33,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 23:52:33,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:34,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:34,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:52:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:52:34,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:52:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:34,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:34,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:52:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:34,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:52:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,083 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:52:34,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010574121] [2020-10-14 23:52:34,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:34,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:52:34,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394615496] [2020-10-14 23:52:34,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:52:34,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:34,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:52:34,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:52:34,087 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand 15 states. [2020-10-14 23:52:34,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:34,469 INFO L93 Difference]: Finished difference Result 139 states and 168 transitions. [2020-10-14 23:52:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 23:52:34,475 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-14 23:52:34,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:34,477 INFO L225 Difference]: With dead ends: 139 [2020-10-14 23:52:34,477 INFO L226 Difference]: Without dead ends: 116 [2020-10-14 23:52:34,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=809, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:52:34,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-14 23:52:34,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 60. [2020-10-14 23:52:34,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 23:52:34,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2020-10-14 23:52:34,501 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 48 [2020-10-14 23:52:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:34,502 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2020-10-14 23:52:34,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:52:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2020-10-14 23:52:34,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 23:52:34,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:34,503 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:34,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 23:52:34,503 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:34,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:34,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1046876454, now seen corresponding path program 6 times [2020-10-14 23:52:34,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:34,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036720512] [2020-10-14 23:52:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:52:34,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 23:52:34,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 23:52:34,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 23:52:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:34,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:34,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:34,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:34,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:52:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:34,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:52:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:34,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:52:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:52:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:34,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:34,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:34,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:34,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:34,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:34,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:52:34,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036720512] [2020-10-14 23:52:34,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:34,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:52:34,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346871581] [2020-10-14 23:52:34,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:52:34,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:34,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:52:34,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:52:34,812 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand 15 states. [2020-10-14 23:52:35,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:35,194 INFO L93 Difference]: Finished difference Result 156 states and 191 transitions. [2020-10-14 23:52:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 23:52:35,195 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-14 23:52:35,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:35,198 INFO L225 Difference]: With dead ends: 156 [2020-10-14 23:52:35,199 INFO L226 Difference]: Without dead ends: 133 [2020-10-14 23:52:35,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:52:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-14 23:52:35,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 60. [2020-10-14 23:52:35,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 23:52:35,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2020-10-14 23:52:35,221 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 48 [2020-10-14 23:52:35,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:35,221 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2020-10-14 23:52:35,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:52:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2020-10-14 23:52:35,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 23:52:35,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:35,222 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:35,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 23:52:35,222 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:35,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:35,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1961056775, now seen corresponding path program 4 times [2020-10-14 23:52:35,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:35,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574652345] [2020-10-14 23:52:35,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:35,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:35,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:35,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:52:35,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 23:52:35,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:35,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 23:52:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 23:52:35,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:35,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:35,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:35,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:35,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:35,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:35,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:35,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:35,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:35,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:35,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:35,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:35,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:52:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:35,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:35,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:35,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:35,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:35,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:35,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:35,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:35,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:35,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:35,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:35,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:35,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:52:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:35,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:35,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:35,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:35,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:35,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:35,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:35,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:52:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:35,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:35,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:35,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:35,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:35,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:35,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:35,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:35,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:35,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:35,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:35,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:52:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:35,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:35,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:35,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:35,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:35,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:35,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:35,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:52:35,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574652345] [2020-10-14 23:52:35,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:35,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:52:35,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147172297] [2020-10-14 23:52:35,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:52:35,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:35,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:52:35,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:52:35,548 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand 15 states. [2020-10-14 23:52:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:35,957 INFO L93 Difference]: Finished difference Result 175 states and 217 transitions. [2020-10-14 23:52:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 23:52:35,958 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-14 23:52:35,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:35,962 INFO L225 Difference]: With dead ends: 175 [2020-10-14 23:52:35,962 INFO L226 Difference]: Without dead ends: 152 [2020-10-14 23:52:35,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=225, Invalid=705, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:52:35,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-14 23:52:35,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 62. [2020-10-14 23:52:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-14 23:52:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2020-10-14 23:52:35,991 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 48 [2020-10-14 23:52:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:35,991 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2020-10-14 23:52:35,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:52:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2020-10-14 23:52:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 23:52:35,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:35,993 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:35,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 23:52:35,993 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1115522167, now seen corresponding path program 8 times [2020-10-14 23:52:35,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:35,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691091712] [2020-10-14 23:52:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 23:52:36,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-14 23:52:36,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:52:36,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:36,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 23:52:36,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:36,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:36,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:36,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:36,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:36,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 23:52:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:36,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:52:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:36,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:52:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:36,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:52:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 23 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 23:52:36,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691091712] [2020-10-14 23:52:36,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:36,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 23:52:36,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249170778] [2020-10-14 23:52:36,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 23:52:36,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:36,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 23:52:36,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:52:36,317 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand 10 states. [2020-10-14 23:52:36,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:36,402 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2020-10-14 23:52:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:52:36,402 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-10-14 23:52:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:36,403 INFO L225 Difference]: With dead ends: 75 [2020-10-14 23:52:36,403 INFO L226 Difference]: Without dead ends: 73 [2020-10-14 23:52:36,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:52:36,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-14 23:52:36,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2020-10-14 23:52:36,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-14 23:52:36,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2020-10-14 23:52:36,414 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 49 [2020-10-14 23:52:36,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:36,415 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2020-10-14 23:52:36,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 23:52:36,415 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2020-10-14 23:52:36,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 23:52:36,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:36,416 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:36,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 23:52:36,417 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:36,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:36,417 INFO L82 PathProgramCache]: Analyzing trace with hash 990063208, now seen corresponding path program 9 times [2020-10-14 23:52:36,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:36,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620166585] [2020-10-14 23:52:36,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 23:52:36,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 23:52:36,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:52:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 23:52:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:36,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:36,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:36,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:36,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:36,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 23:52:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:36,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:52:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:36,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:52:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:36,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:52:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:36,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:52:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:36,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:36,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:36,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:36,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:36,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:36,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:52:36,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620166585] [2020-10-14 23:52:36,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:36,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:52:36,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987675740] [2020-10-14 23:52:36,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:52:36,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:36,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:52:36,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:52:36,812 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand 17 states. [2020-10-14 23:52:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:37,190 INFO L93 Difference]: Finished difference Result 119 states and 139 transitions. [2020-10-14 23:52:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 23:52:37,191 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-14 23:52:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:37,192 INFO L225 Difference]: With dead ends: 119 [2020-10-14 23:52:37,192 INFO L226 Difference]: Without dead ends: 93 [2020-10-14 23:52:37,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:52:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-14 23:52:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 70. [2020-10-14 23:52:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 23:52:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2020-10-14 23:52:37,204 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 56 [2020-10-14 23:52:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:37,204 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2020-10-14 23:52:37,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:52:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2020-10-14 23:52:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 23:52:37,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:37,205 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:37,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 23:52:37,206 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:37,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:37,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1106560281, now seen corresponding path program 7 times [2020-10-14 23:52:37,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:37,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279016003] [2020-10-14 23:52:37,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:37,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:37,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:37,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 23:52:37,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:37,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 23:52:37,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:37,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:52:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 23:52:37,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:37,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:37,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:37,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:37,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:37,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:37,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:37,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:37,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:37,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:37,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:37,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:37,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:37,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 23:52:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:37,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:37,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:37,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:37,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:52:37,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:37,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:37,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:37,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:37,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:37,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:52:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:37,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:37,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:37,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:37,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:37,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:37,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:37,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:37,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:52:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:37,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:37,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:37,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:37,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:37,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:37,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:37,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:52:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:37,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:37,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:37,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:37,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:37,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:37,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:37,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:52:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:37,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:37,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:37,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:37,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:37,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:37,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 50 proven. 11 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:52:37,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279016003] [2020-10-14 23:52:37,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:37,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:52:37,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747357149] [2020-10-14 23:52:37,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:52:37,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:37,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:52:37,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:52:37,604 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 17 states. [2020-10-14 23:52:38,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:38,043 INFO L93 Difference]: Finished difference Result 142 states and 169 transitions. [2020-10-14 23:52:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 23:52:38,044 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-14 23:52:38,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:38,045 INFO L225 Difference]: With dead ends: 142 [2020-10-14 23:52:38,045 INFO L226 Difference]: Without dead ends: 116 [2020-10-14 23:52:38,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=970, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 23:52:38,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-14 23:52:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 70. [2020-10-14 23:52:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 23:52:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2020-10-14 23:52:38,057 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 56 [2020-10-14 23:52:38,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:38,057 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2020-10-14 23:52:38,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:52:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2020-10-14 23:52:38,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 23:52:38,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:38,058 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:38,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 23:52:38,059 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:38,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:38,059 INFO L82 PathProgramCache]: Analyzing trace with hash -342909304, now seen corresponding path program 8 times [2020-10-14 23:52:38,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:38,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86308226] [2020-10-14 23:52:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:38,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:38,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:38,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 23:52:38,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 23:52:38,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:38,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:52:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 23:52:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:38,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:38,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:38,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:38,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:38,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 23:52:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:38,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:38,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:38,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:38,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:38,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:38,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:38,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:38,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:52:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:38,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:38,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:38,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:38,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:38,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:38,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:38,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:52:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:38,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:38,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:38,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:38,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:38,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:38,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:38,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:38,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:38,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:52:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:38,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:38,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:38,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:38,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:38,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:38,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:38,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:52:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:38,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:38,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:38,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:38,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:52:38,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86308226] [2020-10-14 23:52:38,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:38,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:52:38,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854007798] [2020-10-14 23:52:38,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:52:38,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:38,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:52:38,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:52:38,436 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 17 states. [2020-10-14 23:52:38,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:38,991 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2020-10-14 23:52:38,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 23:52:38,991 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-14 23:52:38,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:38,993 INFO L225 Difference]: With dead ends: 164 [2020-10-14 23:52:38,993 INFO L226 Difference]: Without dead ends: 138 [2020-10-14 23:52:38,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 23:52:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-14 23:52:39,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 70. [2020-10-14 23:52:39,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 23:52:39,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2020-10-14 23:52:39,008 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 56 [2020-10-14 23:52:39,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:39,008 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2020-10-14 23:52:39,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:52:39,009 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2020-10-14 23:52:39,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 23:52:39,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:39,009 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:39,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 23:52:39,010 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:39,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:39,010 INFO L82 PathProgramCache]: Analyzing trace with hash 235913927, now seen corresponding path program 9 times [2020-10-14 23:52:39,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:39,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836625047] [2020-10-14 23:52:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:39,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:39,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:39,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 23:52:39,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:39,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 23:52:39,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:39,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:39,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:52:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 23:52:39,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:39,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:39,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:39,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:39,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:39,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:39,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:39,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:39,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:39,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 23:52:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:39,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:39,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:39,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:39,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:39,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:39,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:39,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:39,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:52:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:39,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:39,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:39,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:39,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:39,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:39,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:52:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:39,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:39,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:39,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:39,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:39,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:39,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:39,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:39,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:39,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:39,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:39,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:39,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:52:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:39,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:39,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:39,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:39,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:39,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:39,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:39,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:39,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:52:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:39,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:39,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:39,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:39,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:39,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:39,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:39,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:39,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:39,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:39,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:39,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:39,423 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:52:39,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836625047] [2020-10-14 23:52:39,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:39,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:52:39,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786795507] [2020-10-14 23:52:39,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:52:39,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:39,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:52:39,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:52:39,426 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 17 states. [2020-10-14 23:52:39,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:39,985 INFO L93 Difference]: Finished difference Result 185 states and 226 transitions. [2020-10-14 23:52:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 23:52:39,986 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-14 23:52:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:39,987 INFO L225 Difference]: With dead ends: 185 [2020-10-14 23:52:39,987 INFO L226 Difference]: Without dead ends: 159 [2020-10-14 23:52:39,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1211, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 23:52:39,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-14 23:52:40,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 70. [2020-10-14 23:52:40,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 23:52:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2020-10-14 23:52:40,003 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 56 [2020-10-14 23:52:40,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:40,004 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2020-10-14 23:52:40,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:52:40,004 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2020-10-14 23:52:40,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 23:52:40,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:40,005 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:40,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 23:52:40,006 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:40,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:40,006 INFO L82 PathProgramCache]: Analyzing trace with hash 116038312, now seen corresponding path program 10 times [2020-10-14 23:52:40,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:40,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590606413] [2020-10-14 23:52:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:40,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:40,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 23:52:40,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 23:52:40,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:40,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:52:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:40,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 23:52:40,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:40,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:40,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:40,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:40,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:40,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:40,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:40,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:40,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:40,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 23:52:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:40,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:40,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:40,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:40,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:40,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:52:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:40,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:40,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:40,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:40,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:40,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:40,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:40,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:40,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:40,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:40,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:40,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:52:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:40,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:40,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:40,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:40,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:40,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:40,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:52:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:40,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:40,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:40,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:40,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:40,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:40,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:52:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:40,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:40,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:40,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:40,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:40,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 50 proven. 11 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:52:40,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590606413] [2020-10-14 23:52:40,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:40,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:52:40,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418472702] [2020-10-14 23:52:40,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:52:40,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:40,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:52:40,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:52:40,394 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 17 states. [2020-10-14 23:52:40,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:40,928 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2020-10-14 23:52:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 23:52:40,929 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-14 23:52:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:40,930 INFO L225 Difference]: With dead ends: 205 [2020-10-14 23:52:40,930 INFO L226 Difference]: Without dead ends: 179 [2020-10-14 23:52:40,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 23:52:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-14 23:52:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 70. [2020-10-14 23:52:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 23:52:40,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2020-10-14 23:52:40,945 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 56 [2020-10-14 23:52:40,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:40,946 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2020-10-14 23:52:40,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:52:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2020-10-14 23:52:40,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 23:52:40,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:40,947 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:40,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 23:52:40,947 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:40,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:40,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1688943961, now seen corresponding path program 5 times [2020-10-14 23:52:40,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:40,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780062522] [2020-10-14 23:52:40,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:40,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:41,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:41,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 23:52:41,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 23:52:41,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:41,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:52:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 23:52:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:41,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:41,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:41,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:41,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:41,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:41,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:41,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:41,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 23:52:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:41,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:41,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:41,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:41,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:41,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:52:41,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:41,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:41,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:52:41,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:52:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:41,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:41,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:41,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:41,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:41,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:41,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:41,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:41,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:52:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:41,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:41,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:41,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:41,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:41,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:41,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:41,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:41,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:52:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:41,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:41,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:41,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:41,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:41,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:41,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:41,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:41,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:52:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:41,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:41,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:41,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:41,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:41,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:41,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:41,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:41,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:41,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:41,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:52:41,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780062522] [2020-10-14 23:52:41,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:41,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:52:41,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625940426] [2020-10-14 23:52:41,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:52:41,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:41,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:52:41,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:52:41,334 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 17 states. [2020-10-14 23:52:41,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:41,830 INFO L93 Difference]: Finished difference Result 227 states and 283 transitions. [2020-10-14 23:52:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 23:52:41,831 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-14 23:52:41,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:41,834 INFO L225 Difference]: With dead ends: 227 [2020-10-14 23:52:41,834 INFO L226 Difference]: Without dead ends: 201 [2020-10-14 23:52:41,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 23:52:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-14 23:52:41,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 72. [2020-10-14 23:52:41,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 23:52:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2020-10-14 23:52:41,854 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 56 [2020-10-14 23:52:41,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:41,855 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2020-10-14 23:52:41,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:52:41,855 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2020-10-14 23:52:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 23:52:41,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:41,856 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:41,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 23:52:41,856 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:41,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:41,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1297394408, now seen corresponding path program 10 times [2020-10-14 23:52:41,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:41,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565469539] [2020-10-14 23:52:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:41,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 23:52:42,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 23:52:42,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 23:52:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 23:52:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:42,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:42,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:42,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:52:42,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:42,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:42,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 25 proven. 46 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 23:52:42,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565469539] [2020-10-14 23:52:42,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:42,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 23:52:42,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46819245] [2020-10-14 23:52:42,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:52:42,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:42,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:52:42,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:52:42,226 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand 11 states. [2020-10-14 23:52:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:42,354 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2020-10-14 23:52:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 23:52:42,354 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-10-14 23:52:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:42,355 INFO L225 Difference]: With dead ends: 82 [2020-10-14 23:52:42,355 INFO L226 Difference]: Without dead ends: 80 [2020-10-14 23:52:42,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:52:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-14 23:52:42,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-10-14 23:52:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-14 23:52:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-10-14 23:52:42,372 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 57 [2020-10-14 23:52:42,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:42,373 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-10-14 23:52:42,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:52:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-10-14 23:52:42,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:52:42,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:42,374 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:42,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 23:52:42,374 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:42,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:42,374 INFO L82 PathProgramCache]: Analyzing trace with hash -146238809, now seen corresponding path program 11 times [2020-10-14 23:52:42,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:42,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456575329] [2020-10-14 23:52:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:52:42,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-14 23:52:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:52:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:52:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:42,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:42,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:42,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:42,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:52:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:42,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:42,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:42,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:42,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:42,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:42,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 69 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:42,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456575329] [2020-10-14 23:52:42,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:42,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:52:42,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507803653] [2020-10-14 23:52:42,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:52:42,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:42,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:52:42,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:42,888 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 19 states. [2020-10-14 23:52:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:43,371 INFO L93 Difference]: Finished difference Result 136 states and 159 transitions. [2020-10-14 23:52:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:52:43,372 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 64 [2020-10-14 23:52:43,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:43,373 INFO L225 Difference]: With dead ends: 136 [2020-10-14 23:52:43,373 INFO L226 Difference]: Without dead ends: 107 [2020-10-14 23:52:43,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 23:52:43,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-14 23:52:43,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 80. [2020-10-14 23:52:43,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 23:52:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-10-14 23:52:43,388 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 64 [2020-10-14 23:52:43,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:43,388 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-10-14 23:52:43,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:52:43,388 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-10-14 23:52:43,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:52:43,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:43,389 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:43,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 23:52:43,390 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:43,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:43,390 INFO L82 PathProgramCache]: Analyzing trace with hash -952912858, now seen corresponding path program 11 times [2020-10-14 23:52:43,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:43,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067156607] [2020-10-14 23:52:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:52:43,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 23:52:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:52:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:52:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:43,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:43,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:43,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:52:43,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:43,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:52:43,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:43,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:43,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:43,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:43,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:43,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:43,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:43,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:43,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:43,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:43,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:43,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:52:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:43,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:43,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:43,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:43,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:52:43,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:43,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:43,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:43,842 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 69 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:43,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067156607] [2020-10-14 23:52:43,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:43,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:52:43,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568840878] [2020-10-14 23:52:43,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:52:43,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:43,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:52:43,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:43,844 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 19 states. [2020-10-14 23:52:44,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:44,435 INFO L93 Difference]: Finished difference Result 163 states and 194 transitions. [2020-10-14 23:52:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 23:52:44,437 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 64 [2020-10-14 23:52:44,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:44,439 INFO L225 Difference]: With dead ends: 163 [2020-10-14 23:52:44,439 INFO L226 Difference]: Without dead ends: 134 [2020-10-14 23:52:44,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 23:52:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-14 23:52:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 80. [2020-10-14 23:52:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 23:52:44,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-10-14 23:52:44,455 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 64 [2020-10-14 23:52:44,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:44,456 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-10-14 23:52:44,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:52:44,456 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-10-14 23:52:44,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:52:44,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:44,457 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:44,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 23:52:44,457 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:44,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash -424745273, now seen corresponding path program 12 times [2020-10-14 23:52:44,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:44,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125890171] [2020-10-14 23:52:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:52:44,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-14 23:52:44,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:52:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:52:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:44,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:44,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:44,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:44,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:44,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:44,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:44,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:44,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:44,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:44,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:44,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:44,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:44,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:44,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:44,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:44,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:44,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:44,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:44,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:52:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:44,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:44,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:44,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:44,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:44,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:44,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:44,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:44,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125890171] [2020-10-14 23:52:44,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:44,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:52:44,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634209584] [2020-10-14 23:52:44,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:52:44,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:44,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:52:44,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:44,883 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 19 states. [2020-10-14 23:52:45,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:45,582 INFO L93 Difference]: Finished difference Result 189 states and 228 transitions. [2020-10-14 23:52:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 23:52:45,583 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 64 [2020-10-14 23:52:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:45,584 INFO L225 Difference]: With dead ends: 189 [2020-10-14 23:52:45,584 INFO L226 Difference]: Without dead ends: 160 [2020-10-14 23:52:45,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=432, Invalid=1548, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 23:52:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-14 23:52:45,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 80. [2020-10-14 23:52:45,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 23:52:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-10-14 23:52:45,601 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 64 [2020-10-14 23:52:45,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:45,601 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-10-14 23:52:45,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:52:45,601 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-10-14 23:52:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:52:45,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:45,602 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:45,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 23:52:45,603 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:45,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1516086266, now seen corresponding path program 13 times [2020-10-14 23:52:45,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:45,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066085894] [2020-10-14 23:52:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:45,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:45,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:45,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:52:45,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:45,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 23:52:45,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:45,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:52:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:52:45,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:45,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:45,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:45,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:45,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:45,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:45,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:45,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:45,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:45,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:46,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:46,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:46,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:46,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:46,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:46,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:46,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:46,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:46,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:46,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:46,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:46,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:46,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:46,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:46,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:46,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:46,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:46,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:46,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:46,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:46,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:46,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:46,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:46,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:46,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:46,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:46,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:46,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:46,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:46,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:46,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:46,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:46,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:46,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:46,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:46,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:46,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:52:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:46,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:46,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:46,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:46,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:46,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:46,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:46,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:46,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 69 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:46,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066085894] [2020-10-14 23:52:46,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:46,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:52:46,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492421318] [2020-10-14 23:52:46,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:52:46,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:46,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:52:46,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:46,043 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 19 states. [2020-10-14 23:52:46,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:46,774 INFO L93 Difference]: Finished difference Result 214 states and 261 transitions. [2020-10-14 23:52:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 23:52:46,775 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 64 [2020-10-14 23:52:46,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:46,778 INFO L225 Difference]: With dead ends: 214 [2020-10-14 23:52:46,779 INFO L226 Difference]: Without dead ends: 185 [2020-10-14 23:52:46,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=468, Invalid=1694, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 23:52:46,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-14 23:52:46,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 80. [2020-10-14 23:52:46,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 23:52:46,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-10-14 23:52:46,798 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 64 [2020-10-14 23:52:46,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:46,798 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-10-14 23:52:46,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:52:46,798 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-10-14 23:52:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:52:46,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:46,799 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:46,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 23:52:46,799 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:46,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:46,800 INFO L82 PathProgramCache]: Analyzing trace with hash -304364825, now seen corresponding path program 14 times [2020-10-14 23:52:46,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:46,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704528364] [2020-10-14 23:52:46,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:46,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:52:47,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 23:52:47,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:52:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:52:47,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:47,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:47,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:47,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:47,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:47,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:47,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:47,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:47,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:47,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:47,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:47,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:47,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:47,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:47,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:47,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:47,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:47,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:47,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:47,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:47,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:47,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:47,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:47,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:47,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:47,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:47,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:47,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:47,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:52:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:47,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:47,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:47,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:47,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:47,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:47,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:47,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:47,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704528364] [2020-10-14 23:52:47,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:47,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:52:47,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135589753] [2020-10-14 23:52:47,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:52:47,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:47,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:52:47,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:47,244 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 19 states. [2020-10-14 23:52:48,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:48,109 INFO L93 Difference]: Finished difference Result 238 states and 293 transitions. [2020-10-14 23:52:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 23:52:48,110 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 64 [2020-10-14 23:52:48,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:48,112 INFO L225 Difference]: With dead ends: 238 [2020-10-14 23:52:48,113 INFO L226 Difference]: Without dead ends: 209 [2020-10-14 23:52:48,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=469, Invalid=1693, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 23:52:48,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-14 23:52:48,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 80. [2020-10-14 23:52:48,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 23:52:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-10-14 23:52:48,148 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 64 [2020-10-14 23:52:48,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:48,149 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-10-14 23:52:48,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:52:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-10-14 23:52:48,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:52:48,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:48,151 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:48,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 23:52:48,151 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:48,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:48,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1789297690, now seen corresponding path program 15 times [2020-10-14 23:52:48,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:48,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253792639] [2020-10-14 23:52:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:52:48,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 23:52:48,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:52:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:48,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:52:48,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-10-14 23:52:48,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:48,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:48,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:48,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:48,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:48,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:48,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:48,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:48,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:48,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:48,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:48,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:48,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:48,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:48,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:48,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:48,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:48,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:48,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:52:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:48,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:48,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:48,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:48,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:48,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:48,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:48,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:48,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:48,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 69 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:48,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253792639] [2020-10-14 23:52:48,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:48,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:52:48,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089998046] [2020-10-14 23:52:48,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:52:48,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:48,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:52:48,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:48,642 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 19 states. [2020-10-14 23:52:49,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:49,318 INFO L93 Difference]: Finished difference Result 261 states and 324 transitions. [2020-10-14 23:52:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 23:52:49,318 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 64 [2020-10-14 23:52:49,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:49,320 INFO L225 Difference]: With dead ends: 261 [2020-10-14 23:52:49,320 INFO L226 Difference]: Without dead ends: 232 [2020-10-14 23:52:49,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=435, Invalid=1545, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 23:52:49,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-14 23:52:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 80. [2020-10-14 23:52:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 23:52:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-10-14 23:52:49,341 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 64 [2020-10-14 23:52:49,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:49,341 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-10-14 23:52:49,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:52:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-10-14 23:52:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 23:52:49,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:49,342 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:49,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 23:52:49,343 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:49,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:49,343 INFO L82 PathProgramCache]: Analyzing trace with hash -590272761, now seen corresponding path program 6 times [2020-10-14 23:52:49,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:49,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962706638] [2020-10-14 23:52:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:52:49,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 23:52:49,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:52:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 23:52:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:49,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:49,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 23:52:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:49,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:49,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:49,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:49,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:49,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:52:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:49,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:49,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:49,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:52:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:49,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:49,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:49,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:49,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:52:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:49,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:49,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:49,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:52:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:49,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:49,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:49,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:49,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:49,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:52:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:49,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:49,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:49,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:49,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:49,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:49,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:49,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:49,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:49,810 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 69 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:49,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962706638] [2020-10-14 23:52:49,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:49,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 23:52:49,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557111831] [2020-10-14 23:52:49,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 23:52:49,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:49,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 23:52:49,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:52:49,813 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 19 states. [2020-10-14 23:52:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:50,490 INFO L93 Difference]: Finished difference Result 286 states and 358 transitions. [2020-10-14 23:52:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 23:52:50,490 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 64 [2020-10-14 23:52:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:50,492 INFO L225 Difference]: With dead ends: 286 [2020-10-14 23:52:50,492 INFO L226 Difference]: Without dead ends: 257 [2020-10-14 23:52:50,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1268, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 23:52:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-14 23:52:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 82. [2020-10-14 23:52:50,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-14 23:52:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2020-10-14 23:52:50,520 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 64 [2020-10-14 23:52:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:50,520 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2020-10-14 23:52:50,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 23:52:50,521 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2020-10-14 23:52:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 23:52:50,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:50,522 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:50,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 23:52:50,522 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:50,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1882393943, now seen corresponding path program 12 times [2020-10-14 23:52:50,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:50,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140393072] [2020-10-14 23:52:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 23:52:50,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 23:52:50,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 23:52:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:50,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 23:52:50,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:50,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:50,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:50,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:50,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:50,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:50,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:50,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:50,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:50,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:50,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:50,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:50,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:50,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:50,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:50,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:50,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:50,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:50,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:50,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:50,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:50,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:50,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:50,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:50,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 40 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:52:50,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140393072] [2020-10-14 23:52:50,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:50,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:52:50,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839889814] [2020-10-14 23:52:50,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:52:50,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:50,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:52:50,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:52:50,855 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 12 states. [2020-10-14 23:52:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:50,999 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2020-10-14 23:52:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 23:52:51,002 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-14 23:52:51,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:51,003 INFO L225 Difference]: With dead ends: 95 [2020-10-14 23:52:51,003 INFO L226 Difference]: Without dead ends: 93 [2020-10-14 23:52:51,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:51,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-14 23:52:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2020-10-14 23:52:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-14 23:52:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-10-14 23:52:51,025 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 65 [2020-10-14 23:52:51,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:51,025 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-10-14 23:52:51,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:52:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-10-14 23:52:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:52:51,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:51,027 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:51,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 23:52:51,027 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:51,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:51,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1400117880, now seen corresponding path program 13 times [2020-10-14 23:52:51,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:51,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702814421] [2020-10-14 23:52:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:52:51,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-14 23:52:51,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:52:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:51,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:52:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:51,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:51,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:51,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:51,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:51,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:51,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:51,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:51,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:51,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:51,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:51,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:51,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:51,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:51,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:51,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:51,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:51,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:51,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:51,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:51,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:51,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:51,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:51,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:51,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:51,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:51,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:51,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:51,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:52:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:51,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:51,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:51,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:51,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:51,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:51,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:51,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:51,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 91 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:52:51,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702814421] [2020-10-14 23:52:51,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:51,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:52:51,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585294017] [2020-10-14 23:52:51,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:52:51,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:51,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:52:51,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:51,596 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 21 states. [2020-10-14 23:52:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:52,173 INFO L93 Difference]: Finished difference Result 153 states and 179 transitions. [2020-10-14 23:52:52,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 23:52:52,174 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:52:52,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:52,175 INFO L225 Difference]: With dead ends: 153 [2020-10-14 23:52:52,175 INFO L226 Difference]: Without dead ends: 121 [2020-10-14 23:52:52,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 23:52:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-14 23:52:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 90. [2020-10-14 23:52:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 23:52:52,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-10-14 23:52:52,199 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 72 [2020-10-14 23:52:52,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:52,199 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-10-14 23:52:52,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:52:52,199 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-10-14 23:52:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:52:52,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:52,200 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:52,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 23:52:52,201 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:52,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1044834297, now seen corresponding path program 16 times [2020-10-14 23:52:52,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:52,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239500133] [2020-10-14 23:52:52,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:52:52,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-14 23:52:52,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:52:52,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:52,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:52:52,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:52,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:52,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:52,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:52,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:52,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:52,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:52,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:52,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:52,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:52,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:52,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:52,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:52,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:52,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:52,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:52,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:52,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:52,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:52,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:52,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:52,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:52,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:52,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:52:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:52,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:52,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:52,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:52,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:52,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:52,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:52,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:52,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 91 proven. 22 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:52:52,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239500133] [2020-10-14 23:52:52,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:52,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:52:52,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060319726] [2020-10-14 23:52:52,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:52:52,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:52,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:52:52,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:52,759 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 21 states. [2020-10-14 23:52:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:53,490 INFO L93 Difference]: Finished difference Result 184 states and 219 transitions. [2020-10-14 23:52:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 23:52:53,492 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:52:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:53,493 INFO L225 Difference]: With dead ends: 184 [2020-10-14 23:52:53,493 INFO L226 Difference]: Without dead ends: 152 [2020-10-14 23:52:53,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 23:52:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-14 23:52:53,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 90. [2020-10-14 23:52:53,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 23:52:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-10-14 23:52:53,513 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 72 [2020-10-14 23:52:53,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:53,513 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-10-14 23:52:53,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:52:53,513 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-10-14 23:52:53,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:52:53,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:53,515 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:53,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-14 23:52:53,515 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:53,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:53,515 INFO L82 PathProgramCache]: Analyzing trace with hash -756278872, now seen corresponding path program 17 times [2020-10-14 23:52:53,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:53,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412034436] [2020-10-14 23:52:53,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:53,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:52:53,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 23:52:53,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:53,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:52:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:52:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:54,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:54,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:54,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:54,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:54,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:54,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:54,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:54,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:54,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:54,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:54,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:54,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:54,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:54,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:54,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:54,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:54,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:54,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:54,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:54,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:52:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:54,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:54,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:54,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:54,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:54,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:54,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:54,070 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 91 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:52:54,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412034436] [2020-10-14 23:52:54,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:54,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:52:54,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008280925] [2020-10-14 23:52:54,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:52:54,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:54,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:52:54,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:54,075 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 21 states. [2020-10-14 23:52:54,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:54,932 INFO L93 Difference]: Finished difference Result 214 states and 258 transitions. [2020-10-14 23:52:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 23:52:54,933 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:52:54,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:54,934 INFO L225 Difference]: With dead ends: 214 [2020-10-14 23:52:54,934 INFO L226 Difference]: Without dead ends: 182 [2020-10-14 23:52:54,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=544, Invalid=2006, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 23:52:54,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-14 23:52:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 90. [2020-10-14 23:52:54,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 23:52:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-10-14 23:52:54,955 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 72 [2020-10-14 23:52:54,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:54,956 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-10-14 23:52:54,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:52:54,956 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-10-14 23:52:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:52:54,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:54,957 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:54,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-14 23:52:54,957 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:54,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:54,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1301159961, now seen corresponding path program 18 times [2020-10-14 23:52:54,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:54,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151878707] [2020-10-14 23:52:54,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:54,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:52:55,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 23:52:55,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:52:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:52:55,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:55,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:55,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:55,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:55,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:55,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:55,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:55,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:55,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:55,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:55,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:55,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:55,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:55,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:55,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:55,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:55,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:55,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:55,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:52:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:55,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:55,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:55,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:55,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:55,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:55,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:55,416 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 91 proven. 16 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:52:55,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151878707] [2020-10-14 23:52:55,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:55,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:52:55,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004876467] [2020-10-14 23:52:55,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:52:55,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:55,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:52:55,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:55,418 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 21 states. [2020-10-14 23:52:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:56,320 INFO L93 Difference]: Finished difference Result 243 states and 296 transitions. [2020-10-14 23:52:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 23:52:56,321 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:52:56,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:56,322 INFO L225 Difference]: With dead ends: 243 [2020-10-14 23:52:56,322 INFO L226 Difference]: Without dead ends: 211 [2020-10-14 23:52:56,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=605, Invalid=2257, Unknown=0, NotChecked=0, Total=2862 [2020-10-14 23:52:56,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-14 23:52:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 90. [2020-10-14 23:52:56,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 23:52:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-10-14 23:52:56,348 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 72 [2020-10-14 23:52:56,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:56,348 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-10-14 23:52:56,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:52:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-10-14 23:52:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:52:56,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:56,349 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:56,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-14 23:52:56,350 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1175115208, now seen corresponding path program 19 times [2020-10-14 23:52:56,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:56,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759296566] [2020-10-14 23:52:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:52:56,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 23:52:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:52:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:52:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:56,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:56,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:56,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:56,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:56,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:56,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:56,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:56,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:56,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:56,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:56,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:56,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:56,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:56,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:56,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:56,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:56,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:56,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:56,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:56,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:56,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:56,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:56,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:56,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:56,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:56,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:52:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:56,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:56,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:56,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:56,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:56,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:56,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:56,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:56,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:56,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 91 proven. 16 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:52:56,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759296566] [2020-10-14 23:52:56,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:56,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:52:56,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922618185] [2020-10-14 23:52:56,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:52:56,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:56,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:52:56,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:56,828 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 21 states. [2020-10-14 23:52:57,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:57,761 INFO L93 Difference]: Finished difference Result 271 states and 333 transitions. [2020-10-14 23:52:57,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 23:52:57,765 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:52:57,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:57,767 INFO L225 Difference]: With dead ends: 271 [2020-10-14 23:52:57,767 INFO L226 Difference]: Without dead ends: 239 [2020-10-14 23:52:57,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=627, Invalid=2343, Unknown=0, NotChecked=0, Total=2970 [2020-10-14 23:52:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-14 23:52:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 90. [2020-10-14 23:52:57,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 23:52:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-10-14 23:52:57,806 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 72 [2020-10-14 23:52:57,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:57,806 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-10-14 23:52:57,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:52:57,806 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-10-14 23:52:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:52:57,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:57,809 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:57,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-14 23:52:57,810 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:57,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:57,810 INFO L82 PathProgramCache]: Analyzing trace with hash 8069063, now seen corresponding path program 20 times [2020-10-14 23:52:57,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:57,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19923860] [2020-10-14 23:52:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:57,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:52:58,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-14 23:52:58,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:52:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:52:58,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:58,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:58,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:58,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:58,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:58,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:58,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:58,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:58,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:58,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:58,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:58,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:58,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:58,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:58,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:58,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:58,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:58,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:52:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:58,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:58,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:58,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:58,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:58,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:58,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:58,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:58,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:58,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 91 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:52:58,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19923860] [2020-10-14 23:52:58,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:58,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:52:58,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545615359] [2020-10-14 23:52:58,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:52:58,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:58,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:52:58,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:58,399 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 21 states. [2020-10-14 23:52:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:59,344 INFO L93 Difference]: Finished difference Result 298 states and 369 transitions. [2020-10-14 23:52:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 23:52:59,345 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:52:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:59,347 INFO L225 Difference]: With dead ends: 298 [2020-10-14 23:52:59,347 INFO L226 Difference]: Without dead ends: 266 [2020-10-14 23:52:59,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=607, Invalid=2255, Unknown=0, NotChecked=0, Total=2862 [2020-10-14 23:52:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-14 23:52:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 90. [2020-10-14 23:52:59,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 23:52:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-10-14 23:52:59,377 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 72 [2020-10-14 23:52:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:59,377 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-10-14 23:52:59,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:52:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-10-14 23:52:59,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:52:59,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:59,378 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:59,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-14 23:52:59,379 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:59,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:59,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1276503576, now seen corresponding path program 21 times [2020-10-14 23:52:59,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:59,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687606961] [2020-10-14 23:52:59,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:52:59,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-14 23:52:59,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:52:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:52:59,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:52:59,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:52:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:52:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:59,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:59,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:52:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:59,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:59,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:59,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:52:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:59,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:59,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:59,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:59,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:52:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:59,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:59,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:59,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:59,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:59,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:52:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:59,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:59,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:59,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:52:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:59,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:59,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:59,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:52:59,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:59,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:59,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:59,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:52:59,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 91 proven. 22 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:52:59,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687606961] [2020-10-14 23:52:59,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:52:59,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:52:59,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365338944] [2020-10-14 23:52:59,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:52:59,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:59,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:52:59,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:52:59,885 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 21 states. [2020-10-14 23:53:00,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:00,730 INFO L93 Difference]: Finished difference Result 324 states and 404 transitions. [2020-10-14 23:53:00,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 23:53:00,730 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:53:00,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:00,734 INFO L225 Difference]: With dead ends: 324 [2020-10-14 23:53:00,734 INFO L226 Difference]: Without dead ends: 292 [2020-10-14 23:53:00,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 23:53:00,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-14 23:53:00,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 90. [2020-10-14 23:53:00,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 23:53:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2020-10-14 23:53:00,770 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 72 [2020-10-14 23:53:00,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:00,770 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2020-10-14 23:53:00,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:53:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2020-10-14 23:53:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 23:53:00,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:00,772 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:00,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-14 23:53:00,772 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:00,772 INFO L82 PathProgramCache]: Analyzing trace with hash 898815911, now seen corresponding path program 7 times [2020-10-14 23:53:00,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:00,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313984038] [2020-10-14 23:53:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:00,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 23:53:01,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 23:53:01,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 23:53:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 23:53:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:01,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:01,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:01,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:53:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:01,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:01,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:01,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:53:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:53:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:01,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:01,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:53:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:01,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:01,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:53:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:01,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:01,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:01,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 23:53:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:01,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:01,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:01,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:01,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 23:53:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:01,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 91 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:53:01,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313984038] [2020-10-14 23:53:01,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:01,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 23:53:01,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78300517] [2020-10-14 23:53:01,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 23:53:01,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:01,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 23:53:01,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2020-10-14 23:53:01,263 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 21 states. [2020-10-14 23:53:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:02,069 INFO L93 Difference]: Finished difference Result 352 states and 442 transitions. [2020-10-14 23:53:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 23:53:02,070 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-14 23:53:02,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:02,073 INFO L225 Difference]: With dead ends: 352 [2020-10-14 23:53:02,074 INFO L226 Difference]: Without dead ends: 320 [2020-10-14 23:53:02,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=459, Invalid=1611, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 23:53:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-14 23:53:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 92. [2020-10-14 23:53:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-14 23:53:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2020-10-14 23:53:02,115 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 72 [2020-10-14 23:53:02,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:02,116 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2020-10-14 23:53:02,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 23:53:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2020-10-14 23:53:02,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 23:53:02,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:02,117 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:02,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-14 23:53:02,118 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:02,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:02,118 INFO L82 PathProgramCache]: Analyzing trace with hash 661172280, now seen corresponding path program 14 times [2020-10-14 23:53:02,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:02,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025719098] [2020-10-14 23:53:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 23:53:02,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 23:53:02,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 23:53:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 23:53:02,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:02,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:02,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:02,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:02,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:02,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:02,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:02,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:02,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:02,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:02,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:02,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:02,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:02,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:02,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:02,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:02,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:02,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:02,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:02,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:02,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:02,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:02,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:02,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:02,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:02,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:02,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:02,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 50 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 23:53:02,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025719098] [2020-10-14 23:53:02,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:02,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 23:53:02,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677051633] [2020-10-14 23:53:02,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:53:02,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:02,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:53:02,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:53:02,477 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand 13 states. [2020-10-14 23:53:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:02,683 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2020-10-14 23:53:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 23:53:02,683 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 73 [2020-10-14 23:53:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:02,684 INFO L225 Difference]: With dead ends: 105 [2020-10-14 23:53:02,685 INFO L226 Difference]: Without dead ends: 103 [2020-10-14 23:53:02,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:53:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-14 23:53:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-10-14 23:53:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-14 23:53:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 109 transitions. [2020-10-14 23:53:02,717 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 109 transitions. Word has length 73 [2020-10-14 23:53:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:02,717 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 109 transitions. [2020-10-14 23:53:02,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:53:02,717 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 109 transitions. [2020-10-14 23:53:02,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:02,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:02,718 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:02,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-14 23:53:02,718 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:02,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:02,719 INFO L82 PathProgramCache]: Analyzing trace with hash 721712007, now seen corresponding path program 15 times [2020-10-14 23:53:02,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:02,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661358073] [2020-10-14 23:53:02,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:02,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:02,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:02,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:02,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-14 23:53:02,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:02,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:03,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:03,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:03,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:03,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:03,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:03,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:03,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:53:03,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:03,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:03,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:03,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:03,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:03,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:03,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:03,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:03,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:03,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:03,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:03,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:03,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:03,306 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 116 proven. 36 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:03,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661358073] [2020-10-14 23:53:03,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:03,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:03,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075759361] [2020-10-14 23:53:03,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:03,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:03,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:03,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:03,309 INFO L87 Difference]: Start difference. First operand 99 states and 109 transitions. Second operand 23 states. [2020-10-14 23:53:03,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:03,897 INFO L93 Difference]: Finished difference Result 170 states and 199 transitions. [2020-10-14 23:53:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 23:53:03,898 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:03,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:03,899 INFO L225 Difference]: With dead ends: 170 [2020-10-14 23:53:03,899 INFO L226 Difference]: Without dead ends: 135 [2020-10-14 23:53:03,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=415, Invalid=1391, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 23:53:03,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-14 23:53:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 100. [2020-10-14 23:53:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:03,931 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:03,932 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:03,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:03,932 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:03,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:03,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:03,933 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:03,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-14 23:53:03,933 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:03,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1361922298, now seen corresponding path program 22 times [2020-10-14 23:53:03,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:03,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987300808] [2020-10-14 23:53:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:03,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:04,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:04,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:04,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 116 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:04,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987300808] [2020-10-14 23:53:04,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:04,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:04,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675798904] [2020-10-14 23:53:04,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:04,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:04,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:04,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:04,471 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:05,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:05,262 INFO L93 Difference]: Finished difference Result 205 states and 244 transitions. [2020-10-14 23:53:05,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-14 23:53:05,262 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:05,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:05,263 INFO L225 Difference]: With dead ends: 205 [2020-10-14 23:53:05,263 INFO L226 Difference]: Without dead ends: 170 [2020-10-14 23:53:05,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 23:53:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-14 23:53:05,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 100. [2020-10-14 23:53:05,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:05,299 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:05,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:05,300 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:05,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:05,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:05,301 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:05,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-14 23:53:05,301 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:05,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1618904999, now seen corresponding path program 23 times [2020-10-14 23:53:05,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:05,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169752959] [2020-10-14 23:53:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:05,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-14 23:53:05,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:05,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:05,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:05,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:05,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:05,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:05,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:05,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:05,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:05,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:05,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:05,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:05,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:05,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:05,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:05,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:05,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:05,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:05,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:05,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 116 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:05,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169752959] [2020-10-14 23:53:05,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:05,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:05,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267305288] [2020-10-14 23:53:05,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:05,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:05,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:05,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:05,899 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:06,976 INFO L93 Difference]: Finished difference Result 239 states and 288 transitions. [2020-10-14 23:53:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 23:53:06,976 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:06,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:06,978 INFO L225 Difference]: With dead ends: 239 [2020-10-14 23:53:06,978 INFO L226 Difference]: Without dead ends: 204 [2020-10-14 23:53:06,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=669, Invalid=2523, Unknown=0, NotChecked=0, Total=3192 [2020-10-14 23:53:06,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-14 23:53:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 100. [2020-10-14 23:53:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:07,003 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:07,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:07,003 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:07,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:07,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:07,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:07,004 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:07,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-14 23:53:07,005 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:07,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:07,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1437966054, now seen corresponding path program 24 times [2020-10-14 23:53:07,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:07,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924259783] [2020-10-14 23:53:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:07,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 23:53:07,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:07,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:07,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:07,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:07,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:07,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:07,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:07,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:07,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:07,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:07,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:07,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 116 proven. 21 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:07,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924259783] [2020-10-14 23:53:07,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:07,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:07,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444233717] [2020-10-14 23:53:07,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:07,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:07,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:07,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:07,494 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:08,627 INFO L93 Difference]: Finished difference Result 272 states and 331 transitions. [2020-10-14 23:53:08,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-14 23:53:08,628 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:08,629 INFO L225 Difference]: With dead ends: 272 [2020-10-14 23:53:08,629 INFO L226 Difference]: Without dead ends: 237 [2020-10-14 23:53:08,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=760, Invalid=2900, Unknown=0, NotChecked=0, Total=3660 [2020-10-14 23:53:08,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-14 23:53:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 100. [2020-10-14 23:53:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:08,667 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:08,667 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:08,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:08,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:08,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:08,668 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:08,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-14 23:53:08,668 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:08,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:08,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1615911993, now seen corresponding path program 25 times [2020-10-14 23:53:08,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:08,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166893585] [2020-10-14 23:53:08,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:08,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:08,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:08,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:09,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:09,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:09,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:09,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:09,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:09,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:53:09,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:09,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:09,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:09,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:09,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:09,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:09,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:09,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:09,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:09,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:09,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:09,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:09,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:09,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 116 proven. 20 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:09,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166893585] [2020-10-14 23:53:09,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:09,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:09,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064545003] [2020-10-14 23:53:09,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:09,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:09,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:09,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:09,235 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:10,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:10,470 INFO L93 Difference]: Finished difference Result 304 states and 373 transitions. [2020-10-14 23:53:10,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 23:53:10,471 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:10,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:10,473 INFO L225 Difference]: With dead ends: 304 [2020-10-14 23:53:10,473 INFO L226 Difference]: Without dead ends: 269 [2020-10-14 23:53:10,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=809, Invalid=3097, Unknown=0, NotChecked=0, Total=3906 [2020-10-14 23:53:10,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-14 23:53:10,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 100. [2020-10-14 23:53:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:10,514 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:10,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:10,514 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:10,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:10,514 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:10,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:10,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:10,515 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:10,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-14 23:53:10,515 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:10,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:10,516 INFO L82 PathProgramCache]: Analyzing trace with hash 502333126, now seen corresponding path program 26 times [2020-10-14 23:53:10,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:10,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613315270] [2020-10-14 23:53:10,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:10,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:10,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:10,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:10,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:10,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 23:53:10,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:10,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:10,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:10,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:10,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:10,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:11,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:11,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:11,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:11,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:11,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:11,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:11,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:11,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:11,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:11,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 116 proven. 21 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:11,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613315270] [2020-10-14 23:53:11,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:11,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:11,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776497080] [2020-10-14 23:53:11,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:11,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:11,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:11,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:11,071 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:12,308 INFO L93 Difference]: Finished difference Result 335 states and 414 transitions. [2020-10-14 23:53:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-14 23:53:12,309 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:12,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:12,310 INFO L225 Difference]: With dead ends: 335 [2020-10-14 23:53:12,311 INFO L226 Difference]: Without dead ends: 300 [2020-10-14 23:53:12,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1106 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=810, Invalid=3096, Unknown=0, NotChecked=0, Total=3906 [2020-10-14 23:53:12,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-14 23:53:12,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 100. [2020-10-14 23:53:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:12,345 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:12,345 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:12,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:12,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:12,346 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:12,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-14 23:53:12,346 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:12,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:12,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1956136935, now seen corresponding path program 27 times [2020-10-14 23:53:12,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:12,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726344548] [2020-10-14 23:53:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:12,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 23:53:12,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:12,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:12,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:12,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:12,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:12,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:12,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:12,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:12,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:12,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 116 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:12,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726344548] [2020-10-14 23:53:12,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:12,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:12,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281889235] [2020-10-14 23:53:12,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:12,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:12,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:12,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:12,845 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:14,050 INFO L93 Difference]: Finished difference Result 365 states and 454 transitions. [2020-10-14 23:53:14,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 23:53:14,050 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:14,053 INFO L225 Difference]: With dead ends: 365 [2020-10-14 23:53:14,053 INFO L226 Difference]: Without dead ends: 330 [2020-10-14 23:53:14,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=763, Invalid=2897, Unknown=0, NotChecked=0, Total=3660 [2020-10-14 23:53:14,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-10-14 23:53:14,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 100. [2020-10-14 23:53:14,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:14,100 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:14,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:14,100 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:14,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:14,100 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:14,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:14,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:14,101 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:14,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-14 23:53:14,102 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:14,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:14,102 INFO L82 PathProgramCache]: Analyzing trace with hash -213723482, now seen corresponding path program 28 times [2020-10-14 23:53:14,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:14,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324800662] [2020-10-14 23:53:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:14,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-14 23:53:14,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:14,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:14,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:14,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:14,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:14,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:14,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:14,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:14,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:14,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:14,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:14,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:14,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:14,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:14,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:14,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:14,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 116 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:14,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324800662] [2020-10-14 23:53:14,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:14,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:14,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768005945] [2020-10-14 23:53:14,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:14,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:14,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:14,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:14,608 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:15,669 INFO L93 Difference]: Finished difference Result 394 states and 493 transitions. [2020-10-14 23:53:15,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-14 23:53:15,669 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:15,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:15,671 INFO L225 Difference]: With dead ends: 394 [2020-10-14 23:53:15,671 INFO L226 Difference]: Without dead ends: 359 [2020-10-14 23:53:15,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=674, Invalid=2518, Unknown=0, NotChecked=0, Total=3192 [2020-10-14 23:53:15,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-10-14 23:53:15,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 100. [2020-10-14 23:53:15,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 23:53:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2020-10-14 23:53:15,705 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 80 [2020-10-14 23:53:15,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:15,706 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2020-10-14 23:53:15,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:15,706 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2020-10-14 23:53:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 23:53:15,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:15,707 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:15,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-14 23:53:15,707 INFO L427 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:15,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:15,708 INFO L82 PathProgramCache]: Analyzing trace with hash -2084834297, now seen corresponding path program 8 times [2020-10-14 23:53:15,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:15,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096148350] [2020-10-14 23:53:15,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:15,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:15,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:15,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 23:53:15,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:15,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 23:53:15,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:15,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:53:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 23:53:15,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:16,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:16,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:16,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:16,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:53:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:53:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 23:53:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 23:53:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 23:53:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:53:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 23:53:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 23:53:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:16,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:16,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:16,201 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 116 proven. 36 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:16,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096148350] [2020-10-14 23:53:16,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:16,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:53:16,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169422510] [2020-10-14 23:53:16,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:53:16,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:16,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:53:16,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:53:16,202 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 23 states. [2020-10-14 23:53:17,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:17,106 INFO L93 Difference]: Finished difference Result 425 states and 535 transitions. [2020-10-14 23:53:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 23:53:17,107 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 80 [2020-10-14 23:53:17,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:17,109 INFO L225 Difference]: With dead ends: 425 [2020-10-14 23:53:17,109 INFO L226 Difference]: Without dead ends: 390 [2020-10-14 23:53:17,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=555, Invalid=1995, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 23:53:17,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-10-14 23:53:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 102. [2020-10-14 23:53:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-14 23:53:17,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2020-10-14 23:53:17,155 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 80 [2020-10-14 23:53:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:17,155 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2020-10-14 23:53:17,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:53:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2020-10-14 23:53:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 23:53:17,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:17,156 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:17,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-14 23:53:17,156 INFO L427 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:17,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:17,157 INFO L82 PathProgramCache]: Analyzing trace with hash -125596105, now seen corresponding path program 16 times [2020-10-14 23:53:17,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:17,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482466881] [2020-10-14 23:53:17,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 23:53:17,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 23:53:17,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 23:53:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 23:53:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:17,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:17,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:17,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:17,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:17,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:17,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:17,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:17,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:17,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 61 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 23:53:17,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482466881] [2020-10-14 23:53:17,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:17,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 23:53:17,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538140240] [2020-10-14 23:53:17,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 23:53:17,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:17,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 23:53:17,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:53:17,502 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand 14 states. [2020-10-14 23:53:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:17,695 INFO L93 Difference]: Finished difference Result 115 states and 127 transitions. [2020-10-14 23:53:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 23:53:17,696 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-10-14 23:53:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:17,697 INFO L225 Difference]: With dead ends: 115 [2020-10-14 23:53:17,697 INFO L226 Difference]: Without dead ends: 113 [2020-10-14 23:53:17,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:53:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-14 23:53:17,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2020-10-14 23:53:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-14 23:53:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2020-10-14 23:53:17,727 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 81 [2020-10-14 23:53:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:17,727 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2020-10-14 23:53:17,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 23:53:17,727 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2020-10-14 23:53:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:17,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:17,728 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:17,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-14 23:53:17,728 INFO L427 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:17,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1515018072, now seen corresponding path program 17 times [2020-10-14 23:53:17,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:17,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33675140] [2020-10-14 23:53:17,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:17,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:17,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:17,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:17,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:17,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 23:53:17,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:17,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:17,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:17,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:17,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:17,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:18,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:18,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:18,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:18,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:18,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 144 proven. 45 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:18,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33675140] [2020-10-14 23:53:18,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:18,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:18,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636431931] [2020-10-14 23:53:18,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:18,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:18,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:18,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:18,354 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand 25 states. [2020-10-14 23:53:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:19,177 INFO L93 Difference]: Finished difference Result 187 states and 219 transitions. [2020-10-14 23:53:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 23:53:19,178 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:19,179 INFO L225 Difference]: With dead ends: 187 [2020-10-14 23:53:19,179 INFO L226 Difference]: Without dead ends: 149 [2020-10-14 23:53:19,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=489, Invalid=1673, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 23:53:19,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-14 23:53:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 110. [2020-10-14 23:53:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:19,226 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:19,226 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:19,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:19,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:19,227 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:19,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-14 23:53:19,228 INFO L427 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash -226427609, now seen corresponding path program 29 times [2020-10-14 23:53:19,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:19,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765292107] [2020-10-14 23:53:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:19,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 23:53:19,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:19,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:19,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:19,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:19,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:19,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:19,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:19,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:19,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 144 proven. 37 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:19,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765292107] [2020-10-14 23:53:19,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:19,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:19,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730793028] [2020-10-14 23:53:19,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:19,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:19,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:19,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:19,804 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:20,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:20,774 INFO L93 Difference]: Finished difference Result 226 states and 269 transitions. [2020-10-14 23:53:20,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 23:53:20,774 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:20,775 INFO L225 Difference]: With dead ends: 226 [2020-10-14 23:53:20,776 INFO L226 Difference]: Without dead ends: 188 [2020-10-14 23:53:20,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=652, Invalid=2428, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 23:53:20,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-14 23:53:20,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 110. [2020-10-14 23:53:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:20,826 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:20,826 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:20,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:20,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:20,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:20,827 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:20,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-14 23:53:20,828 INFO L427 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:20,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:20,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1570333496, now seen corresponding path program 30 times [2020-10-14 23:53:20,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:20,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068573384] [2020-10-14 23:53:20,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:20,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:21,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-14 23:53:21,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:21,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:21,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:21,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:21,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:21,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:21,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:21,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:21,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:21,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:21,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 144 proven. 31 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:21,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068573384] [2020-10-14 23:53:21,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:21,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:21,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396871628] [2020-10-14 23:53:21,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:21,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:21,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:21,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:21,432 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:22,683 INFO L93 Difference]: Finished difference Result 264 states and 318 transitions. [2020-10-14 23:53:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 23:53:22,684 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:22,686 INFO L225 Difference]: With dead ends: 264 [2020-10-14 23:53:22,687 INFO L226 Difference]: Without dead ends: 226 [2020-10-14 23:53:22,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=807, Invalid=3099, Unknown=0, NotChecked=0, Total=3906 [2020-10-14 23:53:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-14 23:53:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 110. [2020-10-14 23:53:22,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:22,735 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:22,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:22,735 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:22,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:22,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:22,736 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:22,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-14 23:53:22,736 INFO L427 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:22,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:22,737 INFO L82 PathProgramCache]: Analyzing trace with hash 325977351, now seen corresponding path program 31 times [2020-10-14 23:53:22,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:22,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214241185] [2020-10-14 23:53:22,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:22,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:22,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:22,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:22,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-14 23:53:22,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:22,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:22,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:23,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:23,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:23,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:23,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:23,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:23,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:23,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:23,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:23,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:23,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:23,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 144 proven. 27 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:23,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214241185] [2020-10-14 23:53:23,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:23,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:23,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799313911] [2020-10-14 23:53:23,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:23,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:23,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:23,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:23,314 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:24,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:24,717 INFO L93 Difference]: Finished difference Result 301 states and 366 transitions. [2020-10-14 23:53:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-14 23:53:24,717 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:24,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:24,719 INFO L225 Difference]: With dead ends: 301 [2020-10-14 23:53:24,719 INFO L226 Difference]: Without dead ends: 263 [2020-10-14 23:53:24,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1264 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=933, Invalid=3623, Unknown=0, NotChecked=0, Total=4556 [2020-10-14 23:53:24,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-10-14 23:53:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 110. [2020-10-14 23:53:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:24,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:24,766 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:24,766 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:24,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:24,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:24,767 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:24,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-14 23:53:24,767 INFO L427 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:24,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:24,768 INFO L82 PathProgramCache]: Analyzing trace with hash -305587992, now seen corresponding path program 32 times [2020-10-14 23:53:24,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:24,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487645410] [2020-10-14 23:53:24,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:24,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:25,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 23:53:25,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:25,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:25,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:25,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:25,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:25,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:25,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:25,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:25,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:25,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:25,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:25,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:25,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:25,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:25,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 144 proven. 25 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:25,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487645410] [2020-10-14 23:53:25,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:25,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:25,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634870192] [2020-10-14 23:53:25,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:25,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:25,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:25,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:25,408 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:26,887 INFO L93 Difference]: Finished difference Result 337 states and 413 transitions. [2020-10-14 23:53:26,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 23:53:26,887 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:26,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:26,889 INFO L225 Difference]: With dead ends: 337 [2020-10-14 23:53:26,890 INFO L226 Difference]: Without dead ends: 299 [2020-10-14 23:53:26,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1435 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1015, Invalid=3955, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 23:53:26,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-14 23:53:26,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 110. [2020-10-14 23:53:26,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:26,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:26,945 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:26,946 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:26,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:26,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:26,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:26,947 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:26,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-14 23:53:26,947 INFO L427 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:26,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:26,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1849981721, now seen corresponding path program 33 times [2020-10-14 23:53:26,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:26,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848181284] [2020-10-14 23:53:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:26,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:27,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-14 23:53:27,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:27,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:27,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:27,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:27,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:27,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:27,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:27,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:27,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:27,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:27,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:27,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:27,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:27,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:27,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:27,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:27,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:27,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:27,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:27,628 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 144 proven. 25 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:27,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848181284] [2020-10-14 23:53:27,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:27,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:27,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162436556] [2020-10-14 23:53:27,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:27,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:27,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:27,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:27,630 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:29,306 INFO L93 Difference]: Finished difference Result 372 states and 459 transitions. [2020-10-14 23:53:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-14 23:53:29,307 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:29,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:29,308 INFO L225 Difference]: With dead ends: 372 [2020-10-14 23:53:29,308 INFO L226 Difference]: Without dead ends: 334 [2020-10-14 23:53:29,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1507 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1044, Invalid=4068, Unknown=0, NotChecked=0, Total=5112 [2020-10-14 23:53:29,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-10-14 23:53:29,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 110. [2020-10-14 23:53:29,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:29,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:29,371 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:29,371 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:29,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:29,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:29,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:29,373 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:29,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-10-14 23:53:29,373 INFO L427 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:29,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:29,373 INFO L82 PathProgramCache]: Analyzing trace with hash -237232888, now seen corresponding path program 34 times [2020-10-14 23:53:29,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:29,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135929248] [2020-10-14 23:53:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:29,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:29,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:29,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:29,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-14 23:53:29,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:29,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:29,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:29,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:29,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:29,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:30,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:30,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:30,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:30,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:30,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:30,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:30,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:30,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:30,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:30,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:30,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 144 proven. 27 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:30,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135929248] [2020-10-14 23:53:30,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:30,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:30,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714049545] [2020-10-14 23:53:30,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:30,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:30,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:30,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:30,129 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:31,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:31,815 INFO L93 Difference]: Finished difference Result 406 states and 504 transitions. [2020-10-14 23:53:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-14 23:53:31,816 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:31,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:31,818 INFO L225 Difference]: With dead ends: 406 [2020-10-14 23:53:31,818 INFO L226 Difference]: Without dead ends: 368 [2020-10-14 23:53:31,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1471 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1017, Invalid=3953, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 23:53:31,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-14 23:53:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 110. [2020-10-14 23:53:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:31,860 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:31,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:31,861 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:31,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:31,861 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:31,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:31,861 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:31,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-10-14 23:53:31,862 INFO L427 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:31,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1155040057, now seen corresponding path program 35 times [2020-10-14 23:53:31,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:31,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748032070] [2020-10-14 23:53:31,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:31,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:32,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 23:53:32,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:32,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:32,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:32,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:32,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:32,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:32,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:32,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:32,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:32,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:32,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 144 proven. 31 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:32,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748032070] [2020-10-14 23:53:32,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:32,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:32,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422689861] [2020-10-14 23:53:32,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:32,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:32,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:32,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:32,451 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:34,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:34,067 INFO L93 Difference]: Finished difference Result 439 states and 548 transitions. [2020-10-14 23:53:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 23:53:34,068 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:34,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:34,072 INFO L225 Difference]: With dead ends: 439 [2020-10-14 23:53:34,072 INFO L226 Difference]: Without dead ends: 401 [2020-10-14 23:53:34,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=937, Invalid=3619, Unknown=0, NotChecked=0, Total=4556 [2020-10-14 23:53:34,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-14 23:53:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 110. [2020-10-14 23:53:34,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:34,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:34,141 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:34,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:34,141 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:34,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:34,141 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:34,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:34,142 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:34,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-10-14 23:53:34,142 INFO L427 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:34,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1323194072, now seen corresponding path program 36 times [2020-10-14 23:53:34,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:34,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891495131] [2020-10-14 23:53:34,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:34,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 23:53:34,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:34,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:34,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:34,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:34,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:34,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:34,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:34,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:34,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:34,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:34,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:34,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:34,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:34,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 144 proven. 37 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:34,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891495131] [2020-10-14 23:53:34,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:34,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:34,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044899588] [2020-10-14 23:53:34,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:34,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:34,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:34,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:34,754 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:36,267 INFO L93 Difference]: Finished difference Result 471 states and 591 transitions. [2020-10-14 23:53:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-14 23:53:36,268 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:36,270 INFO L225 Difference]: With dead ends: 471 [2020-10-14 23:53:36,271 INFO L226 Difference]: Without dead ends: 433 [2020-10-14 23:53:36,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=813, Invalid=3093, Unknown=0, NotChecked=0, Total=3906 [2020-10-14 23:53:36,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-10-14 23:53:36,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 110. [2020-10-14 23:53:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 23:53:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2020-10-14 23:53:36,338 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 88 [2020-10-14 23:53:36,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:36,338 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2020-10-14 23:53:36,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:36,338 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2020-10-14 23:53:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 23:53:36,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:36,339 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:36,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-10-14 23:53:36,339 INFO L427 AbstractCegarLoop]: === Iteration 64 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:36,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:36,339 INFO L82 PathProgramCache]: Analyzing trace with hash 888138919, now seen corresponding path program 9 times [2020-10-14 23:53:36,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:36,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241437602] [2020-10-14 23:53:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 23:53:36,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 23:53:36,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 23:53:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 23:53:36,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:36,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:36,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 23:53:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 23:53:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 23:53:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 23:53:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 23:53:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 23:53:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 23:53:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 23:53:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 23:53:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:36,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:36,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:36,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:36,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:36,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:36,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:36,955 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 144 proven. 45 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:36,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241437602] [2020-10-14 23:53:36,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:36,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 23:53:36,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272328350] [2020-10-14 23:53:36,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 23:53:36,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:36,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 23:53:36,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2020-10-14 23:53:36,957 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand 25 states. [2020-10-14 23:53:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:38,357 INFO L93 Difference]: Finished difference Result 505 states and 637 transitions. [2020-10-14 23:53:38,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 23:53:38,358 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2020-10-14 23:53:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:38,360 INFO L225 Difference]: With dead ends: 505 [2020-10-14 23:53:38,361 INFO L226 Difference]: Without dead ends: 467 [2020-10-14 23:53:38,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=660, Invalid=2420, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 23:53:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-10-14 23:53:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 112. [2020-10-14 23:53:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-14 23:53:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2020-10-14 23:53:38,426 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 88 [2020-10-14 23:53:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:38,426 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2020-10-14 23:53:38,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 23:53:38,427 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2020-10-14 23:53:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-14 23:53:38,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:38,427 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:38,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-10-14 23:53:38,428 INFO L427 AbstractCegarLoop]: === Iteration 65 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:38,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:38,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1719931736, now seen corresponding path program 18 times [2020-10-14 23:53:38,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:38,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489452355] [2020-10-14 23:53:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 23:53:38,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 23:53:38,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 23:53:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 23:53:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:38,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:38,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:38,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:38,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:38,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 73 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 23:53:38,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489452355] [2020-10-14 23:53:38,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:38,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:53:38,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9150009] [2020-10-14 23:53:38,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:53:38,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:38,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:53:38,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:53:38,842 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand 15 states. [2020-10-14 23:53:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:39,089 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2020-10-14 23:53:39,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 23:53:39,090 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 89 [2020-10-14 23:53:39,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:39,091 INFO L225 Difference]: With dead ends: 125 [2020-10-14 23:53:39,091 INFO L226 Difference]: Without dead ends: 123 [2020-10-14 23:53:39,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:53:39,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-14 23:53:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2020-10-14 23:53:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-14 23:53:39,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 131 transitions. [2020-10-14 23:53:39,134 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 131 transitions. Word has length 89 [2020-10-14 23:53:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:39,134 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 131 transitions. [2020-10-14 23:53:39,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:53:39,134 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 131 transitions. [2020-10-14 23:53:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:39,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:39,135 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:39,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-10-14 23:53:39,135 INFO L427 AbstractCegarLoop]: === Iteration 66 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:39,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:39,135 INFO L82 PathProgramCache]: Analyzing trace with hash -670479257, now seen corresponding path program 19 times [2020-10-14 23:53:39,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:39,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543057426] [2020-10-14 23:53:39,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:39,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:39,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:39,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:39,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:39,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:39,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:39,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 23:53:39,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:39,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:39,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:39,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:39,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:39,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:39,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:39,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:39,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:39,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:39,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:39,962 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 175 proven. 55 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:39,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543057426] [2020-10-14 23:53:39,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:39,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:39,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250043508] [2020-10-14 23:53:39,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:39,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:39,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:39,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:39,964 INFO L87 Difference]: Start difference. First operand 119 states and 131 transitions. Second operand 27 states. [2020-10-14 23:53:41,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:41,023 INFO L93 Difference]: Finished difference Result 204 states and 239 transitions. [2020-10-14 23:53:41,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 23:53:41,023 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:41,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:41,024 INFO L225 Difference]: With dead ends: 204 [2020-10-14 23:53:41,024 INFO L226 Difference]: Without dead ends: 163 [2020-10-14 23:53:41,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=569, Invalid=1981, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 23:53:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-14 23:53:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 120. [2020-10-14 23:53:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:41,072 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:41,073 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:41,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:41,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:41,073 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:41,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-10-14 23:53:41,073 INFO L427 AbstractCegarLoop]: === Iteration 67 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:41,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2033627622, now seen corresponding path program 37 times [2020-10-14 23:53:41,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:41,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264620845] [2020-10-14 23:53:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:41,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:41,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:41,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 175 proven. 46 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:41,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264620845] [2020-10-14 23:53:41,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:41,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:41,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621363749] [2020-10-14 23:53:41,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:41,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:41,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:41,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:41,809 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:53:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:43,200 INFO L93 Difference]: Finished difference Result 247 states and 294 transitions. [2020-10-14 23:53:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-14 23:53:43,201 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:43,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:43,202 INFO L225 Difference]: With dead ends: 247 [2020-10-14 23:53:43,203 INFO L226 Difference]: Without dead ends: 206 [2020-10-14 23:53:43,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=765, Invalid=2895, Unknown=0, NotChecked=0, Total=3660 [2020-10-14 23:53:43,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-14 23:53:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 120. [2020-10-14 23:53:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:43,254 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:43,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:43,254 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:43,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:43,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:43,255 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:43,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-10-14 23:53:43,255 INFO L427 AbstractCegarLoop]: === Iteration 68 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:43,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:43,255 INFO L82 PathProgramCache]: Analyzing trace with hash 873930887, now seen corresponding path program 38 times [2020-10-14 23:53:43,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:43,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064047788] [2020-10-14 23:53:43,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:43,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 23:53:43,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:43,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:43,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:43,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:43,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:43,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:43,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:43,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:43,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:43,950 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 175 proven. 39 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:43,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064047788] [2020-10-14 23:53:43,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:43,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:43,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550830336] [2020-10-14 23:53:43,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:43,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:43,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:43,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:43,952 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:53:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:45,575 INFO L93 Difference]: Finished difference Result 289 states and 348 transitions. [2020-10-14 23:53:45,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 23:53:45,576 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:45,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:45,577 INFO L225 Difference]: With dead ends: 289 [2020-10-14 23:53:45,577 INFO L226 Difference]: Without dead ends: 248 [2020-10-14 23:53:45,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=958, Invalid=3734, Unknown=0, NotChecked=0, Total=4692 [2020-10-14 23:53:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-14 23:53:45,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 120. [2020-10-14 23:53:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:45,643 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:45,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:45,643 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:45,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:45,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:45,644 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:45,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-10-14 23:53:45,644 INFO L427 AbstractCegarLoop]: === Iteration 69 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:45,645 INFO L82 PathProgramCache]: Analyzing trace with hash -133310010, now seen corresponding path program 39 times [2020-10-14 23:53:45,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:45,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020537377] [2020-10-14 23:53:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:45,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:46,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-14 23:53:46,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:46,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:46,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:46,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:46,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:46,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:46,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:46,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:46,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:46,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:46,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:46,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:46,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:46,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:46,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:46,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:46,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:46,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:46,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:46,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:46,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:46,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:46,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:46,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:46,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:46,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:46,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:46,676 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 175 proven. 34 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:46,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020537377] [2020-10-14 23:53:46,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:46,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:46,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788172150] [2020-10-14 23:53:46,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:46,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:46,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:46,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:46,678 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:53:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:48,561 INFO L93 Difference]: Finished difference Result 330 states and 401 transitions. [2020-10-14 23:53:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-14 23:53:48,562 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:48,563 INFO L225 Difference]: With dead ends: 330 [2020-10-14 23:53:48,563 INFO L226 Difference]: Without dead ends: 289 [2020-10-14 23:53:48,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1578 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1124, Invalid=4426, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 23:53:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-10-14 23:53:48,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 120. [2020-10-14 23:53:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:48,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:48,622 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:48,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:48,622 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:48,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:48,623 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:48,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:48,623 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:48,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-10-14 23:53:48,624 INFO L427 AbstractCegarLoop]: === Iteration 70 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:48,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:48,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1412727641, now seen corresponding path program 40 times [2020-10-14 23:53:48,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:48,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469244281] [2020-10-14 23:53:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:48,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:48,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:49,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:49,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:49,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:49,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:53:49,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:49,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:49,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:49,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:49,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:49,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:49,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:49,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:49,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 175 proven. 31 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:49,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469244281] [2020-10-14 23:53:49,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:49,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:49,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600364133] [2020-10-14 23:53:49,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:49,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:49,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:49,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:49,335 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:53:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:51,239 INFO L93 Difference]: Finished difference Result 370 states and 453 transitions. [2020-10-14 23:53:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 23:53:51,240 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:51,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:51,241 INFO L225 Difference]: With dead ends: 370 [2020-10-14 23:53:51,241 INFO L226 Difference]: Without dead ends: 329 [2020-10-14 23:53:51,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1828 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1245, Invalid=4917, Unknown=0, NotChecked=0, Total=6162 [2020-10-14 23:53:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-14 23:53:51,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 120. [2020-10-14 23:53:51,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:51,297 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:51,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:51,297 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:51,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:51,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:51,298 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:51,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-10-14 23:53:51,299 INFO L427 AbstractCegarLoop]: === Iteration 71 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:51,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:51,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2008188506, now seen corresponding path program 41 times [2020-10-14 23:53:51,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:51,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745270669] [2020-10-14 23:53:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:51,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:51,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:53:51,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:53:51,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:51,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:51,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:51,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:51,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:51,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:51,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:51,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 175 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:51,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745270669] [2020-10-14 23:53:51,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:51,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:51,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703951493] [2020-10-14 23:53:51,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:51,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:51,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:51,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:51,973 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:53:53,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:53,949 INFO L93 Difference]: Finished difference Result 409 states and 504 transitions. [2020-10-14 23:53:53,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-10-14 23:53:53,956 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:53,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:53,958 INFO L225 Difference]: With dead ends: 409 [2020-10-14 23:53:53,958 INFO L226 Difference]: Without dead ends: 368 [2020-10-14 23:53:53,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1970 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1309, Invalid=5171, Unknown=0, NotChecked=0, Total=6480 [2020-10-14 23:53:53,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-14 23:53:54,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 120. [2020-10-14 23:53:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:54,019 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:54,019 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:54,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:54,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:54,019 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:54,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-10-14 23:53:54,020 INFO L427 AbstractCegarLoop]: === Iteration 72 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:54,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:54,020 INFO L82 PathProgramCache]: Analyzing trace with hash -2027396921, now seen corresponding path program 42 times [2020-10-14 23:53:54,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:54,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974159575] [2020-10-14 23:53:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:54,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 23:53:54,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:54,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:54,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:54,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 175 proven. 31 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:54,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974159575] [2020-10-14 23:53:54,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:54,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:54,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349250772] [2020-10-14 23:53:54,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:54,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:54,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:54,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:54,705 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:53:56,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:56,831 INFO L93 Difference]: Finished difference Result 447 states and 554 transitions. [2020-10-14 23:53:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-10-14 23:53:56,832 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:56,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:56,834 INFO L225 Difference]: With dead ends: 447 [2020-10-14 23:53:56,834 INFO L226 Difference]: Without dead ends: 406 [2020-10-14 23:53:56,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1992 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1310, Invalid=5170, Unknown=0, NotChecked=0, Total=6480 [2020-10-14 23:53:56,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-10-14 23:53:56,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 120. [2020-10-14 23:53:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:56,894 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:56,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:56,894 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:56,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:56,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:56,895 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:56,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-10-14 23:53:56,895 INFO L427 AbstractCegarLoop]: === Iteration 73 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:56,896 INFO L82 PathProgramCache]: Analyzing trace with hash -642543226, now seen corresponding path program 43 times [2020-10-14 23:53:56,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:56,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318661319] [2020-10-14 23:53:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:56,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:53:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:53:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:53:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:53:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:53:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:53:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:53:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:53:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:53:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:53:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:53:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:53:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:53:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:53:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:57,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:53:57,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:53:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:53:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:53:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 175 proven. 34 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:53:57,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318661319] [2020-10-14 23:53:57,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:53:57,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:53:57,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943264741] [2020-10-14 23:53:57,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:53:57,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:53:57,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:53:57,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:53:57,584 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:53:59,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:53:59,791 INFO L93 Difference]: Finished difference Result 484 states and 603 transitions. [2020-10-14 23:53:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-10-14 23:53:59,792 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:53:59,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:53:59,794 INFO L225 Difference]: With dead ends: 484 [2020-10-14 23:53:59,794 INFO L226 Difference]: Without dead ends: 443 [2020-10-14 23:53:59,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1888 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1248, Invalid=4914, Unknown=0, NotChecked=0, Total=6162 [2020-10-14 23:53:59,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-14 23:53:59,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 120. [2020-10-14 23:53:59,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:53:59,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:53:59,866 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:53:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:53:59,866 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:53:59,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:53:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:53:59,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:53:59,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:53:59,866 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:53:59,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-10-14 23:53:59,867 INFO L427 AbstractCegarLoop]: === Iteration 74 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:53:59,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:53:59,867 INFO L82 PathProgramCache]: Analyzing trace with hash 649055463, now seen corresponding path program 44 times [2020-10-14 23:53:59,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:53:59,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845964843] [2020-10-14 23:53:59,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:53:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:53:59,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:54:00,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 23:54:00,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:54:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:00,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:54:00,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:54:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:54:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:54:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:54:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:54:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:54:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:54:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:54:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:54:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:54:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:00,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:00,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:00,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 175 proven. 39 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:54:00,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845964843] [2020-10-14 23:54:00,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:00,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:54:00,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161785303] [2020-10-14 23:54:00,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:54:00,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:00,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:54:00,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:54:00,540 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:54:02,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:02,612 INFO L93 Difference]: Finished difference Result 520 states and 651 transitions. [2020-10-14 23:54:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 23:54:02,613 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:54:02,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:02,615 INFO L225 Difference]: With dead ends: 520 [2020-10-14 23:54:02,615 INFO L226 Difference]: Without dead ends: 479 [2020-10-14 23:54:02,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1663 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1129, Invalid=4421, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 23:54:02,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-10-14 23:54:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 120. [2020-10-14 23:54:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:54:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:54:02,681 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:54:02,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:02,681 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:54:02,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:54:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:54:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:54:02,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:02,682 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:02,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-10-14 23:54:02,682 INFO L427 AbstractCegarLoop]: === Iteration 75 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1937645926, now seen corresponding path program 45 times [2020-10-14 23:54:02,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:02,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725062083] [2020-10-14 23:54:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:02,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:02,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:54:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:03,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:03,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:03,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:54:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:54:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:54:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:54:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:54:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:54:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:54:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:54:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:54:03,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:54:03,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:54:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:54:03,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:54:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:03,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:03,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:03,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:03,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:03,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:03,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:03,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:03,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 175 proven. 46 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:54:03,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725062083] [2020-10-14 23:54:03,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:03,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:54:03,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022716633] [2020-10-14 23:54:03,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:54:03,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:03,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:54:03,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:54:03,436 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:54:05,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:05,418 INFO L93 Difference]: Finished difference Result 555 states and 698 transitions. [2020-10-14 23:54:05,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-14 23:54:05,419 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:54:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:05,421 INFO L225 Difference]: With dead ends: 555 [2020-10-14 23:54:05,421 INFO L226 Difference]: Without dead ends: 514 [2020-10-14 23:54:05,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=965, Invalid=3727, Unknown=0, NotChecked=0, Total=4692 [2020-10-14 23:54:05,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-14 23:54:05,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 120. [2020-10-14 23:54:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 23:54:05,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2020-10-14 23:54:05,498 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 96 [2020-10-14 23:54:05,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:05,498 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2020-10-14 23:54:05,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:54:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2020-10-14 23:54:05,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 23:54:05,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:05,499 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:05,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-10-14 23:54:05,499 INFO L427 AbstractCegarLoop]: === Iteration 76 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:05,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:05,500 INFO L82 PathProgramCache]: Analyzing trace with hash 593740039, now seen corresponding path program 10 times [2020-10-14 23:54:05,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:05,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130093582] [2020-10-14 23:54:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:05,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:05,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:05,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 23:54:05,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:06,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:06,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:06,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:54:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 23:54:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 23:54:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 23:54:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 23:54:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 23:54:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 23:54:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 23:54:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 23:54:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 23:54:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:06,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:06,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:06,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:06,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 175 proven. 55 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:54:06,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130093582] [2020-10-14 23:54:06,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:06,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 23:54:06,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961720946] [2020-10-14 23:54:06,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 23:54:06,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:06,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 23:54:06,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2020-10-14 23:54:06,185 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 27 states. [2020-10-14 23:54:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:07,946 INFO L93 Difference]: Finished difference Result 592 states and 748 transitions. [2020-10-14 23:54:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 23:54:07,947 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 96 [2020-10-14 23:54:07,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:07,950 INFO L225 Difference]: With dead ends: 592 [2020-10-14 23:54:07,950 INFO L226 Difference]: Without dead ends: 551 [2020-10-14 23:54:07,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=774, Invalid=2886, Unknown=0, NotChecked=0, Total=3660 [2020-10-14 23:54:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-14 23:54:08,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 122. [2020-10-14 23:54:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-14 23:54:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 135 transitions. [2020-10-14 23:54:08,027 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 135 transitions. Word has length 96 [2020-10-14 23:54:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:08,028 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 135 transitions. [2020-10-14 23:54:08,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 23:54:08,028 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 135 transitions. [2020-10-14 23:54:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 23:54:08,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:08,029 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:08,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-10-14 23:54:08,029 INFO L427 AbstractCegarLoop]: === Iteration 77 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash 2094860055, now seen corresponding path program 20 times [2020-10-14 23:54:08,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:08,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612426106] [2020-10-14 23:54:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 23:54:08,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:08,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:08,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:08,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:08,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:08,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:08,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:08,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:08,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:08,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 86 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 23:54:08,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612426106] [2020-10-14 23:54:08,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:08,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 23:54:08,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706431453] [2020-10-14 23:54:08,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 23:54:08,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:08,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 23:54:08,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:54:08,484 INFO L87 Difference]: Start difference. First operand 122 states and 135 transitions. Second operand 16 states. [2020-10-14 23:54:08,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:08,787 INFO L93 Difference]: Finished difference Result 135 states and 149 transitions. [2020-10-14 23:54:08,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 23:54:08,788 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 97 [2020-10-14 23:54:08,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:08,789 INFO L225 Difference]: With dead ends: 135 [2020-10-14 23:54:08,789 INFO L226 Difference]: Without dead ends: 133 [2020-10-14 23:54:08,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:54:08,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-14 23:54:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 129. [2020-10-14 23:54:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-14 23:54:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2020-10-14 23:54:08,852 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 97 [2020-10-14 23:54:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:08,852 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2020-10-14 23:54:08,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 23:54:08,852 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2020-10-14 23:54:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:08,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:08,853 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:08,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-10-14 23:54:08,853 INFO L427 AbstractCegarLoop]: === Iteration 78 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:08,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1387695160, now seen corresponding path program 21 times [2020-10-14 23:54:08,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:08,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379038663] [2020-10-14 23:54:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:08,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:09,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-14 23:54:09,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:09,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:09,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:09,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:09,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:09,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:09,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 209 proven. 66 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:09,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379038663] [2020-10-14 23:54:09,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:09,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:09,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565414205] [2020-10-14 23:54:09,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:09,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:09,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:09,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:09,681 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand 29 states. [2020-10-14 23:54:10,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:10,960 INFO L93 Difference]: Finished difference Result 221 states and 259 transitions. [2020-10-14 23:54:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 23:54:10,961 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:10,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:10,962 INFO L225 Difference]: With dead ends: 221 [2020-10-14 23:54:10,962 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 23:54:10,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=655, Invalid=2315, Unknown=0, NotChecked=0, Total=2970 [2020-10-14 23:54:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 23:54:11,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 130. [2020-10-14 23:54:11,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:11,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:11,075 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:11,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:11,076 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:11,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:11,076 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:11,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:11,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:11,077 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:11,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-10-14 23:54:11,077 INFO L427 AbstractCegarLoop]: === Iteration 79 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:11,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:11,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1597303367, now seen corresponding path program 46 times [2020-10-14 23:54:11,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:11,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233457787] [2020-10-14 23:54:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:11,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-14 23:54:11,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:11,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:11,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:11,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:11,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:11,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:11,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:54:11,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:11,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:11,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:11,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 209 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:11,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233457787] [2020-10-14 23:54:11,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:11,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:11,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353657841] [2020-10-14 23:54:11,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:11,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:11,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:11,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:11,922 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:13,580 INFO L93 Difference]: Finished difference Result 268 states and 319 transitions. [2020-10-14 23:54:13,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 23:54:13,581 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:13,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:13,582 INFO L225 Difference]: With dead ends: 268 [2020-10-14 23:54:13,582 INFO L226 Difference]: Without dead ends: 224 [2020-10-14 23:54:13,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1026 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=887, Invalid=3403, Unknown=0, NotChecked=0, Total=4290 [2020-10-14 23:54:13,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-14 23:54:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 130. [2020-10-14 23:54:13,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:13,678 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:13,678 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:13,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:13,678 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:13,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:13,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:13,679 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:13,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2020-10-14 23:54:13,679 INFO L427 AbstractCegarLoop]: === Iteration 80 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:13,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:13,679 INFO L82 PathProgramCache]: Analyzing trace with hash -523163672, now seen corresponding path program 47 times [2020-10-14 23:54:13,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:13,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380644152] [2020-10-14 23:54:13,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:13,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:13,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:13,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:13,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:13,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-14 23:54:13,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:13,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:13,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:14,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:14,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:14,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:14,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:14,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 209 proven. 48 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:14,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380644152] [2020-10-14 23:54:14,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:14,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:14,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213171189] [2020-10-14 23:54:14,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:14,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:14,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:14,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:14,491 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:16,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:16,501 INFO L93 Difference]: Finished difference Result 314 states and 378 transitions. [2020-10-14 23:54:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-14 23:54:16,502 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:16,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:16,503 INFO L225 Difference]: With dead ends: 314 [2020-10-14 23:54:16,503 INFO L226 Difference]: Without dead ends: 270 [2020-10-14 23:54:16,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1499 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1122, Invalid=4428, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 23:54:16,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-14 23:54:16,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 130. [2020-10-14 23:54:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:16,593 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:16,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:16,593 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:16,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:16,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:16,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:16,594 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 8, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:16,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-10-14 23:54:16,594 INFO L427 AbstractCegarLoop]: === Iteration 81 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:16,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:16,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1071002151, now seen corresponding path program 48 times [2020-10-14 23:54:16,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:16,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009399074] [2020-10-14 23:54:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:16,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:16,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:16,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:16,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:16,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 23:54:16,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:16,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:16,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:16,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:16,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:17,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:17,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:17,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:17,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:17,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:17,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:17,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:17,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:17,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:17,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:17,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:17,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:17,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:17,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:17,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 209 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:17,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009399074] [2020-10-14 23:54:17,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:17,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:17,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784209100] [2020-10-14 23:54:17,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:17,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:17,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:17,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:17,393 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:19,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:19,694 INFO L93 Difference]: Finished difference Result 359 states and 436 transitions. [2020-10-14 23:54:19,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 23:54:19,696 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:19,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:19,697 INFO L225 Difference]: With dead ends: 359 [2020-10-14 23:54:19,697 INFO L226 Difference]: Without dead ends: 315 [2020-10-14 23:54:19,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1333, Invalid=5309, Unknown=0, NotChecked=0, Total=6642 [2020-10-14 23:54:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-10-14 23:54:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 130. [2020-10-14 23:54:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:19,776 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:19,777 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:19,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:19,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:19,778 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:19,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-10-14 23:54:19,778 INFO L427 AbstractCegarLoop]: === Iteration 82 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash -2064161784, now seen corresponding path program 49 times [2020-10-14 23:54:19,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:19,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320683245] [2020-10-14 23:54:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:19,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:20,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 23:54:20,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:20,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:20,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:20,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:20,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:20,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:20,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:20,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:20,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:20,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:20,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:20,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:20,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:20,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:20,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 209 proven. 38 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:20,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320683245] [2020-10-14 23:54:20,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:20,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:20,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118501203] [2020-10-14 23:54:20,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:20,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:20,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:20,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:20,597 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:23,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:23,149 INFO L93 Difference]: Finished difference Result 403 states and 493 transitions. [2020-10-14 23:54:23,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-14 23:54:23,150 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:23,157 INFO L225 Difference]: With dead ends: 403 [2020-10-14 23:54:23,157 INFO L226 Difference]: Without dead ends: 359 [2020-10-14 23:54:23,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2269 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1499, Invalid=5983, Unknown=0, NotChecked=0, Total=7482 [2020-10-14 23:54:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-10-14 23:54:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 130. [2020-10-14 23:54:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:23,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:23,241 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:23,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:23,241 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:23,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:23,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:23,242 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:23,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2020-10-14 23:54:23,242 INFO L427 AbstractCegarLoop]: === Iteration 83 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:23,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1575481863, now seen corresponding path program 50 times [2020-10-14 23:54:23,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:23,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463037367] [2020-10-14 23:54:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:23,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:23,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:23,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:24,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:24,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:24,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:24,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:24,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:24,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:24,098 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 209 proven. 36 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:24,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463037367] [2020-10-14 23:54:24,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:24,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:24,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165194793] [2020-10-14 23:54:24,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:24,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:24,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:24,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:24,099 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:26,845 INFO L93 Difference]: Finished difference Result 446 states and 549 transitions. [2020-10-14 23:54:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-14 23:54:26,847 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:26,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:26,848 INFO L225 Difference]: With dead ends: 446 [2020-10-14 23:54:26,848 INFO L226 Difference]: Without dead ends: 402 [2020-10-14 23:54:26,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2496 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1605, Invalid=6405, Unknown=0, NotChecked=0, Total=8010 [2020-10-14 23:54:26,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-14 23:54:26,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 130. [2020-10-14 23:54:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:26,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:26,930 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:26,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:26,930 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:26,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:26,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:26,931 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:26,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2020-10-14 23:54:26,932 INFO L427 AbstractCegarLoop]: === Iteration 84 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:26,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1078056920, now seen corresponding path program 51 times [2020-10-14 23:54:26,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:26,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247101609] [2020-10-14 23:54:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:26,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:27,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-14 23:54:27,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:27,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:27,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:27,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:27,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:27,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:27,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:27,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:27,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 209 proven. 36 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:27,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247101609] [2020-10-14 23:54:27,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:27,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:27,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407755503] [2020-10-14 23:54:27,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:27,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:27,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:27,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:27,778 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:30,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:30,632 INFO L93 Difference]: Finished difference Result 488 states and 604 transitions. [2020-10-14 23:54:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 23:54:30,633 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:30,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:30,635 INFO L225 Difference]: With dead ends: 488 [2020-10-14 23:54:30,635 INFO L226 Difference]: Without dead ends: 444 [2020-10-14 23:54:30,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2591 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1642, Invalid=6548, Unknown=0, NotChecked=0, Total=8190 [2020-10-14 23:54:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-10-14 23:54:30,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 130. [2020-10-14 23:54:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:30,776 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:30,776 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:30,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:30,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:30,778 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:30,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2020-10-14 23:54:30,779 INFO L427 AbstractCegarLoop]: === Iteration 85 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:30,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:30,780 INFO L82 PathProgramCache]: Analyzing trace with hash -886560281, now seen corresponding path program 52 times [2020-10-14 23:54:30,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:30,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799361965] [2020-10-14 23:54:30,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:30,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:31,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-14 23:54:31,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:31,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:31,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:31,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:31,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:31,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:31,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 209 proven. 38 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:31,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799361965] [2020-10-14 23:54:31,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:31,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:31,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712566181] [2020-10-14 23:54:31,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:31,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:31,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:31,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:31,921 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:34,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:34,771 INFO L93 Difference]: Finished difference Result 529 states and 658 transitions. [2020-10-14 23:54:34,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 23:54:34,776 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:34,779 INFO L225 Difference]: With dead ends: 529 [2020-10-14 23:54:34,779 INFO L226 Difference]: Without dead ends: 485 [2020-10-14 23:54:34,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2545 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1607, Invalid=6403, Unknown=0, NotChecked=0, Total=8010 [2020-10-14 23:54:34,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-10-14 23:54:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 130. [2020-10-14 23:54:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:34,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:34,895 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:34,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:34,896 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:34,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:34,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:34,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:34,897 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 8, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:34,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2020-10-14 23:54:34,897 INFO L427 AbstractCegarLoop]: === Iteration 86 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:34,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:34,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1336374344, now seen corresponding path program 53 times [2020-10-14 23:54:34,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:34,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999818763] [2020-10-14 23:54:34,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:34,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:35,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-14 23:54:35,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:35,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:35,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:35,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:35,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:35,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:35,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:35,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:35,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:35,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:35,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 209 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:35,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999818763] [2020-10-14 23:54:35,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:35,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:35,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673834544] [2020-10-14 23:54:35,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:35,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:35,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:35,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:35,726 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:38,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:38,574 INFO L93 Difference]: Finished difference Result 569 states and 711 transitions. [2020-10-14 23:54:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-14 23:54:38,575 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:38,577 INFO L225 Difference]: With dead ends: 569 [2020-10-14 23:54:38,578 INFO L226 Difference]: Without dead ends: 525 [2020-10-14 23:54:38,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2357 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1503, Invalid=5979, Unknown=0, NotChecked=0, Total=7482 [2020-10-14 23:54:38,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-10-14 23:54:38,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 130. [2020-10-14 23:54:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:38,677 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:38,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:38,677 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:38,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:38,677 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:38,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:38,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:38,678 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:38,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2020-10-14 23:54:38,678 INFO L427 AbstractCegarLoop]: === Iteration 87 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:38,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:38,678 INFO L82 PathProgramCache]: Analyzing trace with hash -254486073, now seen corresponding path program 54 times [2020-10-14 23:54:38,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:38,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053835964] [2020-10-14 23:54:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:38,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:38,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:38,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:38,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:38,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-14 23:54:38,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:38,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:38,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:38,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:38,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:39,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:39,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:39,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:39,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:39,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:39,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:39,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:39,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:39,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:39,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:39,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:39,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:39,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:39,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 209 proven. 48 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:39,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053835964] [2020-10-14 23:54:39,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:39,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:39,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118915409] [2020-10-14 23:54:39,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:39,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:39,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:39,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:39,533 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:42,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:42,072 INFO L93 Difference]: Finished difference Result 608 states and 763 transitions. [2020-10-14 23:54:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-14 23:54:42,074 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:42,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:42,077 INFO L225 Difference]: With dead ends: 608 [2020-10-14 23:54:42,077 INFO L226 Difference]: Without dead ends: 564 [2020-10-14 23:54:42,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2038 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1339, Invalid=5303, Unknown=0, NotChecked=0, Total=6642 [2020-10-14 23:54:42,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-14 23:54:42,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 130. [2020-10-14 23:54:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:42,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:42,186 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:42,187 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:42,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:42,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:42,187 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:42,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2020-10-14 23:54:42,188 INFO L427 AbstractCegarLoop]: === Iteration 88 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:42,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:42,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1414182808, now seen corresponding path program 55 times [2020-10-14 23:54:42,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:42,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707928889] [2020-10-14 23:54:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:42,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 23:54:42,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:42,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:42,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:42,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:42,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:42,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:42,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:42,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:42,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:42,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:42,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:42,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:42,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:42,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:42,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:42,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:42,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:42,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:42,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:42,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:42,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:42,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:42,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:42,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:42,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:43,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:43,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:43,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:43,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:43,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:43,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:43,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:43,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:43,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:43,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:43,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:43,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:43,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:43,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:43,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:43,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:43,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:43,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:43,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:43,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:43,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:43,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:43,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:43,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:43,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:43,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:43,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:43,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:43,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:43,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:43,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:43,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:43,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:43,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:43,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:43,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:43,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:43,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:43,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:43,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 209 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:43,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707928889] [2020-10-14 23:54:43,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:43,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:43,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273369619] [2020-10-14 23:54:43,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:43,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:43,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:43,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:43,032 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:45,579 INFO L93 Difference]: Finished difference Result 646 states and 814 transitions. [2020-10-14 23:54:45,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 23:54:45,580 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:45,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:45,583 INFO L225 Difference]: With dead ends: 646 [2020-10-14 23:54:45,584 INFO L226 Difference]: Without dead ends: 602 [2020-10-14 23:54:45,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1611 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1130, Invalid=4420, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 23:54:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-10-14 23:54:45,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 130. [2020-10-14 23:54:45,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 23:54:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-10-14 23:54:45,697 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 104 [2020-10-14 23:54:45,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:45,697 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-10-14 23:54:45,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-10-14 23:54:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 23:54:45,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:45,698 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:45,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2020-10-14 23:54:45,698 INFO L427 AbstractCegarLoop]: === Iteration 89 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:45,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:45,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1873543591, now seen corresponding path program 11 times [2020-10-14 23:54:45,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:45,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453229570] [2020-10-14 23:54:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:45,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:45,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:45,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 23:54:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:45,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 23:54:45,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:45,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 23:54:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 23:54:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:46,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:46,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:46,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 23:54:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 23:54:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:54:46,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:54:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:54:46,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:54:46,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:54:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 23:54:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 23:54:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 23:54:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 23:54:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 23:54:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 23:54:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 23:54:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:46,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:46,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:46,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:46,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:46,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:46,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:46,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:46,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 209 proven. 66 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:46,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453229570] [2020-10-14 23:54:46,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:46,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 23:54:46,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485702418] [2020-10-14 23:54:46,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 23:54:46,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:46,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 23:54:46,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2020-10-14 23:54:46,549 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 29 states. [2020-10-14 23:54:48,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:48,938 INFO L93 Difference]: Finished difference Result 686 states and 868 transitions. [2020-10-14 23:54:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-14 23:54:48,939 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 104 [2020-10-14 23:54:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:48,942 INFO L225 Difference]: With dead ends: 686 [2020-10-14 23:54:48,942 INFO L226 Difference]: Without dead ends: 642 [2020-10-14 23:54:48,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=897, Invalid=3393, Unknown=0, NotChecked=0, Total=4290 [2020-10-14 23:54:48,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-10-14 23:54:49,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 132. [2020-10-14 23:54:49,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-14 23:54:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 146 transitions. [2020-10-14 23:54:49,060 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 146 transitions. Word has length 104 [2020-10-14 23:54:49,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:49,060 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 146 transitions. [2020-10-14 23:54:49,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 23:54:49,060 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 146 transitions. [2020-10-14 23:54:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 23:54:49,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:49,061 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:49,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2020-10-14 23:54:49,061 INFO L427 AbstractCegarLoop]: === Iteration 90 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:49,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:49,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1993309816, now seen corresponding path program 22 times [2020-10-14 23:54:49,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:49,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870157901] [2020-10-14 23:54:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 23:54:49,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 23:54:49,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 23:54:49,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:49,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 23:54:49,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:49,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:49,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:54:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:49,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:54:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:49,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:54:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:49,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:54:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:49,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:54:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:49,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:54:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:49,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:54:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:49,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:54:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:49,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:54:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:54:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:54:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:49,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:49,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:49,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:49,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:49,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:49,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:49,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:49,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:49,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 100 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 23:54:49,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870157901] [2020-10-14 23:54:49,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:49,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 23:54:49,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804517095] [2020-10-14 23:54:49,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 23:54:49,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:49,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 23:54:49,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-10-14 23:54:49,587 INFO L87 Difference]: Start difference. First operand 132 states and 146 transitions. Second operand 17 states. [2020-10-14 23:54:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:49,948 INFO L93 Difference]: Finished difference Result 145 states and 160 transitions. [2020-10-14 23:54:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 23:54:49,949 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 105 [2020-10-14 23:54:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:49,951 INFO L225 Difference]: With dead ends: 145 [2020-10-14 23:54:49,951 INFO L226 Difference]: Without dead ends: 143 [2020-10-14 23:54:49,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:54:49,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-14 23:54:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2020-10-14 23:54:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-14 23:54:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2020-10-14 23:54:50,047 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 105 [2020-10-14 23:54:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:50,047 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2020-10-14 23:54:50,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 23:54:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2020-10-14 23:54:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:54:50,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:50,049 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:50,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2020-10-14 23:54:50,049 INFO L427 AbstractCegarLoop]: === Iteration 91 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:50,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:50,049 INFO L82 PathProgramCache]: Analyzing trace with hash 121969991, now seen corresponding path program 23 times [2020-10-14 23:54:50,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:50,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423461099] [2020-10-14 23:54:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:50,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:54:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:50,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:54:50,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:51,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:51,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:51,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:54:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:54:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:54:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:54:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:54:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:54:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:54:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:54:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:54:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:54:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:54:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:54:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:51,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:51,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:51,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:51,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:51,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:51,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:51,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:51,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:51,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 246 proven. 78 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:54:51,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423461099] [2020-10-14 23:54:51,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:51,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:54:51,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188970869] [2020-10-14 23:54:51,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:54:51,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:51,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:54:51,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:54:51,083 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand 31 states. [2020-10-14 23:54:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:52,662 INFO L93 Difference]: Finished difference Result 238 states and 279 transitions. [2020-10-14 23:54:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 23:54:52,663 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:54:52,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:52,665 INFO L225 Difference]: With dead ends: 238 [2020-10-14 23:54:52,665 INFO L226 Difference]: Without dead ends: 191 [2020-10-14 23:54:52,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=747, Invalid=2675, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 23:54:52,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-14 23:54:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 140. [2020-10-14 23:54:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:54:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:54:52,776 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:54:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:52,776 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:54:52,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:54:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:54:52,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:54:52,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:52,777 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:52,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2020-10-14 23:54:52,777 INFO L427 AbstractCegarLoop]: === Iteration 92 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:52,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:52,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1219648314, now seen corresponding path program 56 times [2020-10-14 23:54:52,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:52,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752472421] [2020-10-14 23:54:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:52,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:53,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:54:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:53,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:53,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:53,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:54:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:54:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:54:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:54:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:54:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:54:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:54:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:54:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:54:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:53,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:54:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:54:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:54:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:53,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:53,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:53,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:53,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:53,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:53,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 246 proven. 67 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:54:53,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752472421] [2020-10-14 23:54:53,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:53,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:54:53,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654136591] [2020-10-14 23:54:53,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:54:53,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:53,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:54:53,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=726, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:54:53,844 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:54:55,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:55,997 INFO L93 Difference]: Finished difference Result 289 states and 344 transitions. [2020-10-14 23:54:55,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-14 23:54:55,998 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:54:55,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:55,999 INFO L225 Difference]: With dead ends: 289 [2020-10-14 23:54:55,999 INFO L226 Difference]: Without dead ends: 242 [2020-10-14 23:54:56,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1018, Invalid=3952, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 23:54:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-14 23:54:56,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 140. [2020-10-14 23:54:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:54:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:54:56,106 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:54:56,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:56,106 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:54:56,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:54:56,106 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:54:56,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:54:56,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:56,107 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:56,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2020-10-14 23:54:56,107 INFO L427 AbstractCegarLoop]: === Iteration 93 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:56,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:56,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1785114983, now seen corresponding path program 57 times [2020-10-14 23:54:56,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:56,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185954933] [2020-10-14 23:54:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:56,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:56,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:54:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:54:56,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:54:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:54:57,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:54:57,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:54:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:54:57,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:54:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:54:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:54:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:54:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:54:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:54:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:54:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:54:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:54:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:54:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:54:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:54:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:57,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:54:57,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:54:57,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:54:57,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:54:57,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:54:57,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:54:57,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:54:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:54:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:54:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:54:57,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:54:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 246 proven. 58 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:54:57,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185954933] [2020-10-14 23:54:57,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:54:57,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:54:57,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84866218] [2020-10-14 23:54:57,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:54:57,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:54:57,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:54:57,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:54:57,137 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:54:59,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:54:59,770 INFO L93 Difference]: Finished difference Result 339 states and 408 transitions. [2020-10-14 23:54:59,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-14 23:54:59,771 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:54:59,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:54:59,773 INFO L225 Difference]: With dead ends: 339 [2020-10-14 23:54:59,773 INFO L226 Difference]: Without dead ends: 292 [2020-10-14 23:54:59,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1779 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1299, Invalid=5181, Unknown=0, NotChecked=0, Total=6480 [2020-10-14 23:54:59,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-14 23:54:59,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 140. [2020-10-14 23:54:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:54:59,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:54:59,888 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:54:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:54:59,888 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:54:59,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:54:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:54:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:54:59,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:54:59,889 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 9, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:54:59,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2020-10-14 23:54:59,890 INFO L427 AbstractCegarLoop]: === Iteration 94 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:54:59,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:54:59,890 INFO L82 PathProgramCache]: Analyzing trace with hash 496569510, now seen corresponding path program 58 times [2020-10-14 23:54:59,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:54:59,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208697679] [2020-10-14 23:54:59,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:54:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:54:59,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:00,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-14 23:55:00,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:00,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:00,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:00,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:00,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:00,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:00,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:00,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:00,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:00,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 246 proven. 51 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:00,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208697679] [2020-10-14 23:55:00,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:00,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:00,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144641450] [2020-10-14 23:55:00,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:00,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:00,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:00,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:00,971 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:04,184 INFO L93 Difference]: Finished difference Result 388 states and 471 transitions. [2020-10-14 23:55:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 23:55:04,185 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:04,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:04,187 INFO L225 Difference]: With dead ends: 388 [2020-10-14 23:55:04,187 INFO L226 Difference]: Without dead ends: 341 [2020-10-14 23:55:04,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2311 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1560, Invalid=6272, Unknown=0, NotChecked=0, Total=7832 [2020-10-14 23:55:04,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-10-14 23:55:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 140. [2020-10-14 23:55:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:04,302 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:04,302 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:04,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:04,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:04,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:04,303 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 8, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:04,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2020-10-14 23:55:04,303 INFO L427 AbstractCegarLoop]: === Iteration 95 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:04,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:04,303 INFO L82 PathProgramCache]: Analyzing trace with hash 455003527, now seen corresponding path program 59 times [2020-10-14 23:55:04,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:04,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143374811] [2020-10-14 23:55:04,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:04,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:04,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:04,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:04,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-14 23:55:04,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:04,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:04,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:05,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:05,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:05,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:05,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:05,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:05,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:05,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 246 proven. 46 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:05,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143374811] [2020-10-14 23:55:05,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:05,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:05,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821288377] [2020-10-14 23:55:05,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:05,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:05,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:05,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:05,383 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:08,938 INFO L93 Difference]: Finished difference Result 436 states and 533 transitions. [2020-10-14 23:55:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 23:55:08,940 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:08,941 INFO L225 Difference]: With dead ends: 436 [2020-10-14 23:55:08,941 INFO L226 Difference]: Without dead ends: 389 [2020-10-14 23:55:08,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2758 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1777, Invalid=7153, Unknown=0, NotChecked=0, Total=8930 [2020-10-14 23:55:08,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-14 23:55:09,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 140. [2020-10-14 23:55:09,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:09,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:09,061 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:09,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:09,061 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:09,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:09,061 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:09,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:09,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:09,062 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 7, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:09,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2020-10-14 23:55:09,062 INFO L427 AbstractCegarLoop]: === Iteration 96 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:09,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:09,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1700588678, now seen corresponding path program 60 times [2020-10-14 23:55:09,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:09,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175531652] [2020-10-14 23:55:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:09,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:09,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:09,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:09,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-14 23:55:09,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:09,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:10,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:10,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:10,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:10,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:10,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:10,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 246 proven. 43 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:10,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175531652] [2020-10-14 23:55:10,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:10,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:10,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240162411] [2020-10-14 23:55:10,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:10,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:10,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:10,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=750, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:10,236 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:14,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:14,050 INFO L93 Difference]: Finished difference Result 483 states and 594 transitions. [2020-10-14 23:55:14,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-10-14 23:55:14,051 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:14,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:14,054 INFO L225 Difference]: With dead ends: 483 [2020-10-14 23:55:14,054 INFO L226 Difference]: Without dead ends: 436 [2020-10-14 23:55:14,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3085 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1932, Invalid=7770, Unknown=0, NotChecked=0, Total=9702 [2020-10-14 23:55:14,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-14 23:55:14,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 140. [2020-10-14 23:55:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:14,178 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:14,179 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:14,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:14,179 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:14,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:14,179 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:14,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2020-10-14 23:55:14,179 INFO L427 AbstractCegarLoop]: === Iteration 97 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:14,180 INFO L82 PathProgramCache]: Analyzing trace with hash 493842855, now seen corresponding path program 61 times [2020-10-14 23:55:14,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:14,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349875439] [2020-10-14 23:55:14,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:14,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:14,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:14,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:14,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:14,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-14 23:55:14,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:14,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:14,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:15,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:15,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:15,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:15,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:15,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:15,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:15,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 246 proven. 42 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:15,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349875439] [2020-10-14 23:55:15,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:15,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:15,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521923156] [2020-10-14 23:55:15,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:15,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:15,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:15,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=751, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:15,233 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:19,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:19,096 INFO L93 Difference]: Finished difference Result 529 states and 654 transitions. [2020-10-14 23:55:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-14 23:55:19,098 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:19,100 INFO L225 Difference]: With dead ends: 529 [2020-10-14 23:55:19,100 INFO L226 Difference]: Without dead ends: 482 [2020-10-14 23:55:19,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3269 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2013, Invalid=8087, Unknown=0, NotChecked=0, Total=10100 [2020-10-14 23:55:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-14 23:55:19,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 140. [2020-10-14 23:55:19,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:19,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:19,278 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:19,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:19,279 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:19,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:19,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:19,279 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 7, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:19,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2020-10-14 23:55:19,280 INFO L427 AbstractCegarLoop]: === Iteration 98 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:19,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:19,280 INFO L82 PathProgramCache]: Analyzing trace with hash 39273574, now seen corresponding path program 62 times [2020-10-14 23:55:19,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:19,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810653160] [2020-10-14 23:55:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:19,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:19,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:20,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:20,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:20,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:55:20,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:20,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:20,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:20,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:20,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:20,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:20,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:20,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:20,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:20,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:20,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 246 proven. 43 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:20,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810653160] [2020-10-14 23:55:20,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:20,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:20,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026693791] [2020-10-14 23:55:20,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:20,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:20,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:20,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=750, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:20,346 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:24,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:24,346 INFO L93 Difference]: Finished difference Result 574 states and 713 transitions. [2020-10-14 23:55:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-10-14 23:55:24,348 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:24,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:24,352 INFO L225 Difference]: With dead ends: 574 [2020-10-14 23:55:24,352 INFO L226 Difference]: Without dead ends: 527 [2020-10-14 23:55:24,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3298 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2014, Invalid=8086, Unknown=0, NotChecked=0, Total=10100 [2020-10-14 23:55:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-10-14 23:55:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 140. [2020-10-14 23:55:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:24,489 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:24,489 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:24,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:24,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:24,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:24,490 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 8, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:24,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2020-10-14 23:55:24,490 INFO L427 AbstractCegarLoop]: === Iteration 99 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:24,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:24,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1915052601, now seen corresponding path program 63 times [2020-10-14 23:55:24,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:24,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886540110] [2020-10-14 23:55:24,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:24,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:24,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:24,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:24,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 23:55:24,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:24,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:24,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:25,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:25,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:25,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:25,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:25,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:25,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:25,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:25,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 246 proven. 46 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:25,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886540110] [2020-10-14 23:55:25,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:25,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:25,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650769278] [2020-10-14 23:55:25,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:25,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:25,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:25,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:25,572 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:29,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:29,593 INFO L93 Difference]: Finished difference Result 618 states and 771 transitions. [2020-10-14 23:55:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-14 23:55:29,595 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:29,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:29,598 INFO L225 Difference]: With dead ends: 618 [2020-10-14 23:55:29,598 INFO L226 Difference]: Without dead ends: 571 [2020-10-14 23:55:29,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3166 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1935, Invalid=7767, Unknown=0, NotChecked=0, Total=9702 [2020-10-14 23:55:29,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-10-14 23:55:29,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 140. [2020-10-14 23:55:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:29,734 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:29,734 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:29,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:29,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:29,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:29,735 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 9, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:29,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2020-10-14 23:55:29,735 INFO L427 AbstractCegarLoop]: === Iteration 100 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:29,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:29,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1069945926, now seen corresponding path program 64 times [2020-10-14 23:55:29,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:29,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116969918] [2020-10-14 23:55:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:29,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:30,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-14 23:55:30,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:30,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:30,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:30,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:30,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:30,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:30,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:30,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:30,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:30,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:30,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:30,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:30,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:30,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:30,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:30,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:30,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:30,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:31,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:31,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:31,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:31,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:31,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:31,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:31,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:31,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:31,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:31,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:31,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:31,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 246 proven. 51 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:31,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116969918] [2020-10-14 23:55:31,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:31,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:31,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985006653] [2020-10-14 23:55:31,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:31,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:31,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:31,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:31,018 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:34,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:34,842 INFO L93 Difference]: Finished difference Result 661 states and 828 transitions. [2020-10-14 23:55:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-10-14 23:55:34,844 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:34,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:34,846 INFO L225 Difference]: With dead ends: 661 [2020-10-14 23:55:34,846 INFO L226 Difference]: Without dead ends: 614 [2020-10-14 23:55:34,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2878 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1782, Invalid=7148, Unknown=0, NotChecked=0, Total=8930 [2020-10-14 23:55:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2020-10-14 23:55:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 140. [2020-10-14 23:55:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:34,993 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:34,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:34,993 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:34,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:34,994 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:34,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:34,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:34,994 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:34,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2020-10-14 23:55:34,994 INFO L427 AbstractCegarLoop]: === Iteration 101 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:34,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:34,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1050521113, now seen corresponding path program 65 times [2020-10-14 23:55:34,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:34,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699211432] [2020-10-14 23:55:34,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:35,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:35,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:36,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:36,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:36,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:36,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:36,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:36,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:36,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 246 proven. 58 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:36,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699211432] [2020-10-14 23:55:36,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:36,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:36,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136121327] [2020-10-14 23:55:36,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:36,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:36,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:36,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:36,077 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:39,755 INFO L93 Difference]: Finished difference Result 703 states and 884 transitions. [2020-10-14 23:55:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 23:55:39,757 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:39,761 INFO L225 Difference]: With dead ends: 703 [2020-10-14 23:55:39,761 INFO L226 Difference]: Without dead ends: 656 [2020-10-14 23:55:39,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2451 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1567, Invalid=6265, Unknown=0, NotChecked=0, Total=7832 [2020-10-14 23:55:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-10-14 23:55:39,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 140. [2020-10-14 23:55:39,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:39,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:39,898 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:39,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:39,898 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:39,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:39,898 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:39,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:39,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:39,899 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:39,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2020-10-14 23:55:39,899 INFO L427 AbstractCegarLoop]: === Iteration 102 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:39,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:39,900 INFO L82 PathProgramCache]: Analyzing trace with hash 543644710, now seen corresponding path program 66 times [2020-10-14 23:55:39,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:39,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712540713] [2020-10-14 23:55:39,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:39,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:40,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:40,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:40,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:40,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:40,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:40,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:40,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:40,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:40,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:40,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:40,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:40,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 246 proven. 67 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:40,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712540713] [2020-10-14 23:55:40,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:40,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:40,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033621940] [2020-10-14 23:55:40,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:40,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:41,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:41,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=726, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:41,000 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:44,752 INFO L93 Difference]: Finished difference Result 744 states and 939 transitions. [2020-10-14 23:55:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 23:55:44,753 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:44,757 INFO L225 Difference]: With dead ends: 744 [2020-10-14 23:55:44,757 INFO L226 Difference]: Without dead ends: 697 [2020-10-14 23:55:44,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1914 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1308, Invalid=5172, Unknown=0, NotChecked=0, Total=6480 [2020-10-14 23:55:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-14 23:55:44,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 140. [2020-10-14 23:55:44,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 23:55:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2020-10-14 23:55:44,898 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 112 [2020-10-14 23:55:44,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:44,899 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2020-10-14 23:55:44,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:44,899 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2020-10-14 23:55:44,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 23:55:44,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:44,899 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:44,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2020-10-14 23:55:44,900 INFO L427 AbstractCegarLoop]: === Iteration 103 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:44,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:44,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1703448071, now seen corresponding path program 12 times [2020-10-14 23:55:44,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:44,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452007814] [2020-10-14 23:55:44,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:44,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 23:55:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:45,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:45,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 23:55:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:55:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:45,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:45,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:45,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 23:55:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:45,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 23:55:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:45,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 23:55:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:45,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 23:55:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 23:55:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:45,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 23:55:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:45,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:45,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:45,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:45,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 23:55:45,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:46,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:46,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:46,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 23:55:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:46,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:46,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:46,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:46,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 23:55:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:46,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:46,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:46,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:46,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:46,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:46,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:46,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:46,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 23:55:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:46,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:46,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:46,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:46,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:46,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:46,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:46,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:46,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 23:55:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:46,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:46,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:46,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:46,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:46,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:46,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:46,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 246 proven. 78 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:46,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452007814] [2020-10-14 23:55:46,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:46,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 23:55:46,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763075591] [2020-10-14 23:55:46,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 23:55:46,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:46,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 23:55:46,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2020-10-14 23:55:46,024 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 31 states. [2020-10-14 23:55:49,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:49,209 INFO L93 Difference]: Finished difference Result 787 states and 997 transitions. [2020-10-14 23:55:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-14 23:55:49,211 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 112 [2020-10-14 23:55:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:49,213 INFO L225 Difference]: With dead ends: 787 [2020-10-14 23:55:49,213 INFO L226 Difference]: Without dead ends: 740 [2020-10-14 23:55:49,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1308 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1029, Invalid=3941, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 23:55:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-10-14 23:55:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 142. [2020-10-14 23:55:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-14 23:55:49,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 157 transitions. [2020-10-14 23:55:49,360 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 157 transitions. Word has length 112 [2020-10-14 23:55:49,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:49,360 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 157 transitions. [2020-10-14 23:55:49,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 23:55:49,360 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 157 transitions. [2020-10-14 23:55:49,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 23:55:49,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:49,361 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:49,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2020-10-14 23:55:49,361 INFO L427 AbstractCegarLoop]: === Iteration 104 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:49,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:49,361 INFO L82 PathProgramCache]: Analyzing trace with hash -2043840521, now seen corresponding path program 24 times [2020-10-14 23:55:49,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:49,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986133255] [2020-10-14 23:55:49,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:49,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:49,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:49,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 23:55:49,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:49,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-14 23:55:49,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:49,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 23:55:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:49,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 23:55:49,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:49,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:49,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:49,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:49,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:49,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:55:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:49,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:49,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:49,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:49,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:49,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:49,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:55:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:49,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:49,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:49,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:49,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:49,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:49,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:49,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:49,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:49,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:49,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:49,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:49,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:55:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:50,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:55:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:50,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:55:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:50,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 23:55:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:50,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:55:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:55:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:55:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 23:55:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:50,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 23:55:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:50,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 23:55:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:50,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:50,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:50,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:50,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:50,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:50,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 115 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 23:55:50,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986133255] [2020-10-14 23:55:50,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:50,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 23:55:50,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635533374] [2020-10-14 23:55:50,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 23:55:50,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:50,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 23:55:50,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:55:50,050 INFO L87 Difference]: Start difference. First operand 142 states and 157 transitions. Second operand 18 states. [2020-10-14 23:55:50,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:50,540 INFO L93 Difference]: Finished difference Result 155 states and 171 transitions. [2020-10-14 23:55:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:55:50,542 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 113 [2020-10-14 23:55:50,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:50,543 INFO L225 Difference]: With dead ends: 155 [2020-10-14 23:55:50,543 INFO L226 Difference]: Without dead ends: 153 [2020-10-14 23:55:50,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=214, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:55:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-14 23:55:50,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 149. [2020-10-14 23:55:50,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-14 23:55:50,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 164 transitions. [2020-10-14 23:55:50,682 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 164 transitions. Word has length 113 [2020-10-14 23:55:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:50,682 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 164 transitions. [2020-10-14 23:55:50,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 23:55:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 164 transitions. [2020-10-14 23:55:50,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 23:55:50,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:50,683 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:50,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2020-10-14 23:55:50,684 INFO L427 AbstractCegarLoop]: === Iteration 105 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:50,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:50,684 INFO L82 PathProgramCache]: Analyzing trace with hash -224246040, now seen corresponding path program 25 times [2020-10-14 23:55:50,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:50,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650423398] [2020-10-14 23:55:50,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:50,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 23:55:51,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:51,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:51,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:51,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:55:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:55:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:55:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:55:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:55:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 23:55:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:55:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:55:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:55:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 23:55:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 23:55:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 23:55:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:51,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 23:55:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:51,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:51,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:51,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:51,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:51,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:51,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:51,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 286 proven. 91 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 23:55:52,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650423398] [2020-10-14 23:55:52,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:52,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 23:55:52,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669185499] [2020-10-14 23:55:52,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 23:55:52,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:52,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 23:55:52,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:55:52,005 INFO L87 Difference]: Start difference. First operand 149 states and 164 transitions. Second operand 33 states. [2020-10-14 23:55:53,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:53,985 INFO L93 Difference]: Finished difference Result 255 states and 299 transitions. [2020-10-14 23:55:53,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 23:55:53,986 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 120 [2020-10-14 23:55:53,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:53,987 INFO L225 Difference]: With dead ends: 255 [2020-10-14 23:55:53,987 INFO L226 Difference]: Without dead ends: 205 [2020-10-14 23:55:53,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=845, Invalid=3061, Unknown=0, NotChecked=0, Total=3906 [2020-10-14 23:55:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-14 23:55:54,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 150. [2020-10-14 23:55:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-14 23:55:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2020-10-14 23:55:54,155 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 120 [2020-10-14 23:55:54,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:54,155 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2020-10-14 23:55:54,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 23:55:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2020-10-14 23:55:54,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 23:55:54,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:54,156 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:54,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2020-10-14 23:55:54,156 INFO L427 AbstractCegarLoop]: === Iteration 106 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:54,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:54,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1087971481, now seen corresponding path program 67 times [2020-10-14 23:55:54,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:54,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418570850] [2020-10-14 23:55:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:54,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:54,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 23:55:54,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:54,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-14 23:55:54,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:54,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 23:55:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 23:55:54,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:55,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:55,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:55:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:55:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:55:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:55:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:55:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 23:55:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:55:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:55:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:55:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 23:55:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 23:55:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:55,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:55,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 23:55:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:55:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:55:55,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 23:55:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:55,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:55,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:55,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:55,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:55,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:55:55,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:55,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:55,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:55,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:55:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 286 proven. 79 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 23:55:55,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418570850] [2020-10-14 23:55:55,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:55,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 23:55:55,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690966740] [2020-10-14 23:55:55,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 23:55:55,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:55,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 23:55:55,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:55:55,471 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand 33 states. [2020-10-14 23:55:58,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:55:58,325 INFO L93 Difference]: Finished difference Result 310 states and 369 transitions. [2020-10-14 23:55:58,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 23:55:58,327 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 120 [2020-10-14 23:55:58,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:55:58,328 INFO L225 Difference]: With dead ends: 310 [2020-10-14 23:55:58,328 INFO L226 Difference]: Without dead ends: 260 [2020-10-14 23:55:58,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1407 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1158, Invalid=4542, Unknown=0, NotChecked=0, Total=5700 [2020-10-14 23:55:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-14 23:55:58,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 150. [2020-10-14 23:55:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-14 23:55:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2020-10-14 23:55:58,491 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 120 [2020-10-14 23:55:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:55:58,491 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2020-10-14 23:55:58,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 23:55:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2020-10-14 23:55:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 23:55:58,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:55:58,492 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:55:58,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2020-10-14 23:55:58,492 INFO L427 AbstractCegarLoop]: === Iteration 107 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:55:58,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:55:58,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1115833592, now seen corresponding path program 68 times [2020-10-14 23:55:58,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:55:58,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278657545] [2020-10-14 23:55:58,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:55:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:58,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:58,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:58,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 23:55:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:55:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:55:59,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:55:59,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:55:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:55:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:55:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:55:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:55:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:55:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:55:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 23:55:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:55:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:55:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:55:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 23:55:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 23:55:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 23:55:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 23:55:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:55:59,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:55:59,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:55:59,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:55:59,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:55:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:55:59,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:55:59,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:55:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:55:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:55:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:55:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:55:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 286 proven. 69 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 23:55:59,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278657545] [2020-10-14 23:55:59,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:55:59,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 23:55:59,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375767788] [2020-10-14 23:55:59,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 23:55:59,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:55:59,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 23:55:59,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:55:59,757 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand 33 states. [2020-10-14 23:56:03,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:56:03,162 INFO L93 Difference]: Finished difference Result 364 states and 438 transitions. [2020-10-14 23:56:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 23:56:03,164 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 120 [2020-10-14 23:56:03,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:56:03,165 INFO L225 Difference]: With dead ends: 364 [2020-10-14 23:56:03,165 INFO L226 Difference]: Without dead ends: 314 [2020-10-14 23:56:03,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2083 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1489, Invalid=5993, Unknown=0, NotChecked=0, Total=7482 [2020-10-14 23:56:03,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-14 23:56:03,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 150. [2020-10-14 23:56:03,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-14 23:56:03,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2020-10-14 23:56:03,350 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 120 [2020-10-14 23:56:03,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:56:03,350 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2020-10-14 23:56:03,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 23:56:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2020-10-14 23:56:03,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 23:56:03,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:56:03,351 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:56:03,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2020-10-14 23:56:03,351 INFO L427 AbstractCegarLoop]: === Iteration 108 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:56:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:56:03,351 INFO L82 PathProgramCache]: Analyzing trace with hash -285448377, now seen corresponding path program 69 times [2020-10-14 23:56:03,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:56:03,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470337213] [2020-10-14 23:56:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:56:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:03,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:03,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:03,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 23:56:03,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:03,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-14 23:56:03,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:03,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 23:56:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:56:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 23:56:03,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:56:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:56:04,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:56:04,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:56:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:56:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:56:04,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:56:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:56:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:56:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:56:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:56:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 23:56:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:56:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:56:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:56:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 23:56:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 23:56:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 23:56:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 23:56:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:04,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:04,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:04,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:04,639 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 286 proven. 61 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 23:56:04,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470337213] [2020-10-14 23:56:04,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:56:04,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 23:56:04,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141219076] [2020-10-14 23:56:04,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 23:56:04,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:56:04,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 23:56:04,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=841, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:56:04,641 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand 33 states. [2020-10-14 23:56:08,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:56:08,709 INFO L93 Difference]: Finished difference Result 417 states and 506 transitions. [2020-10-14 23:56:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-14 23:56:08,711 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 120 [2020-10-14 23:56:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:56:08,713 INFO L225 Difference]: With dead ends: 417 [2020-10-14 23:56:08,713 INFO L226 Difference]: Without dead ends: 367 [2020-10-14 23:56:08,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2730 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1805, Invalid=7315, Unknown=0, NotChecked=0, Total=9120 [2020-10-14 23:56:08,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-10-14 23:56:08,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 150. [2020-10-14 23:56:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-14 23:56:08,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2020-10-14 23:56:08,880 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 120 [2020-10-14 23:56:08,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:56:08,880 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2020-10-14 23:56:08,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 23:56:08,880 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2020-10-14 23:56:08,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 23:56:08,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:56:08,881 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 9, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:56:08,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2020-10-14 23:56:08,881 INFO L427 AbstractCegarLoop]: === Iteration 109 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:56:08,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:56:08,881 INFO L82 PathProgramCache]: Analyzing trace with hash 988264232, now seen corresponding path program 70 times [2020-10-14 23:56:08,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:56:08,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012629388] [2020-10-14 23:56:08,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:56:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:08,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:09,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 23:56:09,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:56:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:56:10,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:56:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:56:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:56:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:56:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:56:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:56:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:56:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:56:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 23:56:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:56:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:56:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:56:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 23:56:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 23:56:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 23:56:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 23:56:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:10,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:10,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:10,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:10,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:10,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:10,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:10,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:10,188 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 286 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 23:56:10,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012629388] [2020-10-14 23:56:10,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:56:10,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 23:56:10,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193270731] [2020-10-14 23:56:10,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 23:56:10,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:56:10,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 23:56:10,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=847, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:56:10,189 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand 33 states. [2020-10-14 23:56:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:56:14,967 INFO L93 Difference]: Finished difference Result 469 states and 573 transitions. [2020-10-14 23:56:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-14 23:56:14,970 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 120 [2020-10-14 23:56:14,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:56:14,971 INFO L225 Difference]: With dead ends: 469 [2020-10-14 23:56:14,971 INFO L226 Difference]: Without dead ends: 419 [2020-10-14 23:56:14,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3295 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2079, Invalid=8427, Unknown=0, NotChecked=0, Total=10506 [2020-10-14 23:56:14,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-10-14 23:56:15,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 150. [2020-10-14 23:56:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-14 23:56:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2020-10-14 23:56:15,141 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 120 [2020-10-14 23:56:15,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:56:15,141 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2020-10-14 23:56:15,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 23:56:15,142 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2020-10-14 23:56:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 23:56:15,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:56:15,142 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 8, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:56:15,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2020-10-14 23:56:15,142 INFO L427 AbstractCegarLoop]: === Iteration 110 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:56:15,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:56:15,143 INFO L82 PathProgramCache]: Analyzing trace with hash 475162407, now seen corresponding path program 71 times [2020-10-14 23:56:15,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:56:15,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363849415] [2020-10-14 23:56:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:56:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:15,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:15,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:15,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 23:56:15,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-14 23:56:15,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:15,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 23:56:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:56:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 23:56:15,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:56:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:56:16,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 23:56:16,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:56:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:56:16,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 23:56:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 23:56:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:56:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 23:56:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 23:56:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 23:56:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 23:56:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 23:56:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:56:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 23:56:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 23:56:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 23:56:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 23:56:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:56:16,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:56:16,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:56:16,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:56:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:56:16,430 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 286 proven. 51 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 23:56:16,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363849415] [2020-10-14 23:56:16,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:56:16,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 23:56:16,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417763885] [2020-10-14 23:56:16,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 23:56:16,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:56:16,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 23:56:16,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 23:56:16,431 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand 33 states.