/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=BIGGEST --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/eca-rers2012/Problem14_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:04:08,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:04:08,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:04:08,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:04:08,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:04:08,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:04:08,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:04:08,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:04:08,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:04:08,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:04:08,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:04:08,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:04:08,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:04:08,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:04:08,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:04:08,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:04:08,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:04:08,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:04:08,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:04:08,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:04:08,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:04:08,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:04:08,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:04:08,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:04:08,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:04:08,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:04:08,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:04:08,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:04:08,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:04:08,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:04:08,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:04:08,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:04:08,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:04:08,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:04:08,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:04:08,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:04:08,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:04:08,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:04:08,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:04:08,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:04:08,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:04:08,701 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 [2020-10-12 14:04:08,739 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:04:08,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:04:08,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:04:08,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:04:08,741 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:04:08,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:04:08,743 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:04:08,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:04:08,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:04:08,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:04:08,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:04:08,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:04:08,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:04:08,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:04:08,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:04:08,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:04:08,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:04:08,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:04:08,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:04:08,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:04:08,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:04:08,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:04:08,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:04:08,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:04:08,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:04:08,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:04:08,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:04:08,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:04:08,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:04:08,751 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:04:09,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:04:09,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:04:09,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:04:09,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:04:09,069 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:04:09,070 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label54.c [2020-10-12 14:04:09,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be5b7f124/e27fc1d1feb542f697358378824a04c4/FLAG924c5de7d [2020-10-12 14:04:09,681 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:04:09,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label54.c [2020-10-12 14:04:09,701 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be5b7f124/e27fc1d1feb542f697358378824a04c4/FLAG924c5de7d [2020-10-12 14:04:09,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be5b7f124/e27fc1d1feb542f697358378824a04c4 [2020-10-12 14:04:09,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:04:09,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:04:09,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:04:09,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:04:09,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:04:09,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:04:09" (1/1) ... [2020-10-12 14:04:09,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:09, skipping insertion in model container [2020-10-12 14:04:09,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:04:09" (1/1) ... [2020-10-12 14:04:09,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:04:10,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:04:10,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:04:10,574 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:04:10,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:04:10,760 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:04:10,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10 WrapperNode [2020-10-12 14:04:10,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:04:10,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:04:10,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:04:10,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:04:10,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (1/1) ... [2020-10-12 14:04:10,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (1/1) ... [2020-10-12 14:04:10,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (1/1) ... [2020-10-12 14:04:10,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (1/1) ... [2020-10-12 14:04:10,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (1/1) ... [2020-10-12 14:04:10,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (1/1) ... [2020-10-12 14:04:10,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (1/1) ... [2020-10-12 14:04:10,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:04:10,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:04:10,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:04:10,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:04:10,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (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 [2020-10-12 14:04:10,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:04:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:04:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:04:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:04:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:04:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:04:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:04:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:04:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:04:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:04:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:04:12,357 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:04:12,357 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:04:12,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:04:12 BoogieIcfgContainer [2020-10-12 14:04:12,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:04:12,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:04:12,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:04:12,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:04:12,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:04:09" (1/3) ... [2020-10-12 14:04:12,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d55254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:04:12, skipping insertion in model container [2020-10-12 14:04:12,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:10" (2/3) ... [2020-10-12 14:04:12,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d55254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:04:12, skipping insertion in model container [2020-10-12 14:04:12,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:04:12" (3/3) ... [2020-10-12 14:04:12,373 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label54.c [2020-10-12 14:04:12,383 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:04:12,393 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:04:12,406 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:04:12,431 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:04:12,431 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:04:12,431 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:04:12,432 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:04:12,432 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:04:12,432 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:04:12,432 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:04:12,432 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:04:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 14:04:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-12 14:04:12,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:12,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:12,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:12,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:12,469 INFO L82 PathProgramCache]: Analyzing trace with hash 856083907, now seen corresponding path program 1 times [2020-10-12 14:04:12,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:12,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776885602] [2020-10-12 14:04:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:12,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:12,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:12,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 14:04:12,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:12,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-12 14:04:12,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:12,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:12,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:04:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 14:04:12,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:04:13,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:13,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:13,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:13,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:13,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:04:13,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:04:13,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:04:13,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776885602] [2020-10-12 14:04:13,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:04:13,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:04:13,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182908635] [2020-10-12 14:04:13,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:04:13,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:13,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:04:13,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:04:13,070 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 14:04:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:14,806 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-12 14:04:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:04:14,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-12 14:04:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:14,836 INFO L225 Difference]: With dead ends: 698 [2020-10-12 14:04:14,836 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 14:04:14,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:04:14,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 14:04:14,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-12 14:04:14,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-12 14:04:14,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-12 14:04:14,939 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 12 [2020-10-12 14:04:14,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:14,940 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-12 14:04:14,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:04:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-12 14:04:14,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 14:04:14,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:14,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:14,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:04:14,945 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:14,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:14,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1817586675, now seen corresponding path program 1 times [2020-10-12 14:04:14,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:14,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118651122] [2020-10-12 14:04:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:15,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:15,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:15,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:15,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 14:04:15,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-12 14:04:15,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:04:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:04:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:15,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:15,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:15,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:15,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:15,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:04:15,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:04:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:15,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:15,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:15,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:15,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:04:15,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:15,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:04:15,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:15,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:04:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:15,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:04:15,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118651122] [2020-10-12 14:04:15,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:04:15,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:04:15,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898901900] [2020-10-12 14:04:15,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:04:15,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:15,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:04:15,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:04:15,911 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 7 states. [2020-10-12 14:04:17,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:17,859 INFO L93 Difference]: Finished difference Result 1130 states and 1679 transitions. [2020-10-12 14:04:17,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:04:17,863 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-12 14:04:17,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:17,868 INFO L225 Difference]: With dead ends: 1130 [2020-10-12 14:04:17,868 INFO L226 Difference]: Without dead ends: 760 [2020-10-12 14:04:17,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:04:17,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-12 14:04:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 748. [2020-10-12 14:04:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-12 14:04:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 986 transitions. [2020-10-12 14:04:17,916 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 986 transitions. Word has length 81 [2020-10-12 14:04:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:17,917 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 986 transitions. [2020-10-12 14:04:17,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:04:17,917 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 986 transitions. [2020-10-12 14:04:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 14:04:17,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:17,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:17,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:04:17,920 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:17,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:17,921 INFO L82 PathProgramCache]: Analyzing trace with hash 925530949, now seen corresponding path program 1 times [2020-10-12 14:04:17,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:17,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875161499] [2020-10-12 14:04:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:17,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:17,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 14:04:18,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-12 14:04:18,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:04:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:04:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:18,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:04:18,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:04:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:18,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:19,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:04:19,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 14:04:19,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:04:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:04:19,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875161499] [2020-10-12 14:04:19,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:04:19,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:04:19,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124940929] [2020-10-12 14:04:19,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:04:19,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:19,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:04:19,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:04:19,136 INFO L87 Difference]: Start difference. First operand 748 states and 986 transitions. Second operand 7 states. [2020-10-12 14:04:20,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:20,767 INFO L93 Difference]: Finished difference Result 1332 states and 1783 transitions. [2020-10-12 14:04:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:04:20,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-12 14:04:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:20,776 INFO L225 Difference]: With dead ends: 1332 [2020-10-12 14:04:20,776 INFO L226 Difference]: Without dead ends: 958 [2020-10-12 14:04:20,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:04:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-10-12 14:04:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 934. [2020-10-12 14:04:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-10-12 14:04:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1190 transitions. [2020-10-12 14:04:20,814 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1190 transitions. Word has length 85 [2020-10-12 14:04:20,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:20,814 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1190 transitions. [2020-10-12 14:04:20,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:04:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1190 transitions. [2020-10-12 14:04:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-12 14:04:20,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:20,822 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:20,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:04:20,822 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:20,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:20,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1183871230, now seen corresponding path program 1 times [2020-10-12 14:04:20,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:20,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400496318] [2020-10-12 14:04:20,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:20,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:20,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:21,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:21,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 14:04:21,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:04:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-12 14:04:21,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 14:04:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:04:21,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:21,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:21,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:21,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:21,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:21,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:21,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:21,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:21,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:21,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:22,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:22,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:04:22,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:04:22,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:04:22,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:22,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 14:04:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:22,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:22,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:04:22,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:22,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:04:22,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:22,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:04:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:22,345 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:04:22,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400496318] [2020-10-12 14:04:22,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:22,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:04:22,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627425365] [2020-10-12 14:04:22,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:04:22,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:22,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:04:22,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:04:22,351 INFO L87 Difference]: Start difference. First operand 934 states and 1190 transitions. Second operand 7 states. [2020-10-12 14:04:24,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:24,454 INFO L93 Difference]: Finished difference Result 1704 states and 2313 transitions. [2020-10-12 14:04:24,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:04:24,454 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-12 14:04:24,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:24,461 INFO L225 Difference]: With dead ends: 1704 [2020-10-12 14:04:24,461 INFO L226 Difference]: Without dead ends: 958 [2020-10-12 14:04:24,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:04:24,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-10-12 14:04:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 750. [2020-10-12 14:04:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-12 14:04:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 948 transitions. [2020-10-12 14:04:24,489 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 948 transitions. Word has length 169 [2020-10-12 14:04:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:24,489 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 948 transitions. [2020-10-12 14:04:24,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:04:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 948 transitions. [2020-10-12 14:04:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-12 14:04:24,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:24,493 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:24,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:04:24,494 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:24,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:24,494 INFO L82 PathProgramCache]: Analyzing trace with hash 280820682, now seen corresponding path program 1 times [2020-10-12 14:04:24,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:24,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944956402] [2020-10-12 14:04:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:24,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:24,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:24,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:25,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:26,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:26,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-12 14:04:26,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:04:26,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2248 [2020-10-12 14:04:26,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:04:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:04:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 14:04:26,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:26,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:26,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:26,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:26,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:26,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:04:26,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:26,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:26,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:26,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:04:26,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:26,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:26,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:26,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:26,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:04:26,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 14:04:26,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 14:04:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:27,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 14:04:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:27,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:27,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:27,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:04:27,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:27,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 14:04:27,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:04:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 14:04:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 11 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:04:27,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944956402] [2020-10-12 14:04:27,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:27,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:04:27,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556534734] [2020-10-12 14:04:27,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:04:27,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:27,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:04:27,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:04:27,515 INFO L87 Difference]: Start difference. First operand 750 states and 948 transitions. Second operand 9 states. [2020-10-12 14:04:29,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:29,753 INFO L93 Difference]: Finished difference Result 1910 states and 2509 transitions. [2020-10-12 14:04:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:04:29,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 179 [2020-10-12 14:04:29,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:29,767 INFO L225 Difference]: With dead ends: 1910 [2020-10-12 14:04:29,768 INFO L226 Difference]: Without dead ends: 1152 [2020-10-12 14:04:29,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-12 14:04:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-10-12 14:04:29,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1122. [2020-10-12 14:04:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-12 14:04:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1262 transitions. [2020-10-12 14:04:29,806 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1262 transitions. Word has length 179 [2020-10-12 14:04:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:29,807 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1262 transitions. [2020-10-12 14:04:29,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:04:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1262 transitions. [2020-10-12 14:04:29,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-12 14:04:29,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:29,811 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:29,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:04:29,812 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:29,812 INFO L82 PathProgramCache]: Analyzing trace with hash -284080629, now seen corresponding path program 1 times [2020-10-12 14:04:29,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:29,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152553750] [2020-10-12 14:04:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:29,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:29,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:30,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:33,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:33,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 14:04:33,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:04:33,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3178 [2020-10-12 14:04:33,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:04:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 14:04:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:33,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:33,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:33,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:33,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:33,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:04:33,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:04:33,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:33,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:33,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:33,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:33,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 14:04:33,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:04:33,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 14:04:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:33,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:33,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:33,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:04:33,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:33,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:04:33,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 14:04:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:33,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 10 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:04:33,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152553750] [2020-10-12 14:04:33,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:33,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:04:33,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404245856] [2020-10-12 14:04:33,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:04:33,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:33,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:04:33,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:04:33,406 INFO L87 Difference]: Start difference. First operand 1122 states and 1262 transitions. Second operand 7 states. [2020-10-12 14:04:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:34,889 INFO L93 Difference]: Finished difference Result 2630 states and 3042 transitions. [2020-10-12 14:04:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:04:34,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-10-12 14:04:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:34,896 INFO L225 Difference]: With dead ends: 2630 [2020-10-12 14:04:34,897 INFO L226 Difference]: Without dead ends: 1696 [2020-10-12 14:04:34,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:04:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-10-12 14:04:34,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1682. [2020-10-12 14:04:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-10-12 14:04:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 1875 transitions. [2020-10-12 14:04:34,941 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 1875 transitions. Word has length 194 [2020-10-12 14:04:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:34,941 INFO L479 AbstractCegarLoop]: Abstraction has 1682 states and 1875 transitions. [2020-10-12 14:04:34,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:04:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 1875 transitions. [2020-10-12 14:04:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-10-12 14:04:34,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:34,949 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:34,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:04:34,949 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:34,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:34,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1482186211, now seen corresponding path program 1 times [2020-10-12 14:04:34,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:34,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506864168] [2020-10-12 14:04:34,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:35,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:35,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:35,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:35,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:38,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 414 [2020-10-12 14:04:40,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 14:04:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:04:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:40,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:40,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:04:40,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:04:40,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:40,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:04:40,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:04:40,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:04:40,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:04:40,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 14:04:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:40,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-12 14:04:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:04:40,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 14:04:40,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:40,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:04:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 425 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-12 14:04:41,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506864168] [2020-10-12 14:04:41,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:41,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:04:41,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196332748] [2020-10-12 14:04:41,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:04:41,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:41,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:04:41,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:04:41,263 INFO L87 Difference]: Start difference. First operand 1682 states and 1875 transitions. Second operand 8 states. [2020-10-12 14:04:43,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:43,019 INFO L93 Difference]: Finished difference Result 3580 states and 4127 transitions. [2020-10-12 14:04:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:04:43,021 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 398 [2020-10-12 14:04:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:43,034 INFO L225 Difference]: With dead ends: 3580 [2020-10-12 14:04:43,034 INFO L226 Difference]: Without dead ends: 2080 [2020-10-12 14:04:43,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:04:43,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2020-10-12 14:04:43,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2058. [2020-10-12 14:04:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2058 states. [2020-10-12 14:04:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2247 transitions. [2020-10-12 14:04:43,104 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2247 transitions. Word has length 398 [2020-10-12 14:04:43,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:43,106 INFO L479 AbstractCegarLoop]: Abstraction has 2058 states and 2247 transitions. [2020-10-12 14:04:43,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:04:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2247 transitions. [2020-10-12 14:04:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-10-12 14:04:43,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:43,118 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:43,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:04:43,119 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:43,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:43,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1284388159, now seen corresponding path program 1 times [2020-10-12 14:04:43,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:43,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036449702] [2020-10-12 14:04:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:43,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:43,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:43,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:44,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:48,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 535 [2020-10-12 14:04:48,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:04:48,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 14:04:48,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:48,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:04:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 418 [2020-10-12 14:04:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:04:48,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:48,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:48,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:48,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:48,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:48,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:04:48,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:48,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:48,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:48,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:48,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:48,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:48,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:48,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:04:48,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:48,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:48,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:48,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:48,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:48,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:48,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:48,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:48,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:04:48,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:48,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:48,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:48,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:48,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:48,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:48,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:04:48,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:48,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:48,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:04:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:48,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:48,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:04:48,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:48,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:04:48,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:48,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:48,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:48,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:04:48,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:48,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:04:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:48,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:48,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:48,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 14:04:48,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:48,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-12 14:04:48,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:04:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:04:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 410 proven. 2 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2020-10-12 14:04:49,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036449702] [2020-10-12 14:04:49,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:49,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:04:49,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415473334] [2020-10-12 14:04:49,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:04:49,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:49,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:04:49,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:04:49,590 INFO L87 Difference]: Start difference. First operand 2058 states and 2247 transitions. Second operand 10 states. [2020-10-12 14:04:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:51,738 INFO L93 Difference]: Finished difference Result 4018 states and 4439 transitions. [2020-10-12 14:04:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:04:51,739 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 517 [2020-10-12 14:04:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:51,748 INFO L225 Difference]: With dead ends: 4018 [2020-10-12 14:04:51,748 INFO L226 Difference]: Without dead ends: 2168 [2020-10-12 14:04:51,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-10-12 14:04:51,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2020-10-12 14:04:51,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2054. [2020-10-12 14:04:51,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2054 states. [2020-10-12 14:04:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2213 transitions. [2020-10-12 14:04:51,801 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2213 transitions. Word has length 517 [2020-10-12 14:04:51,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:51,802 INFO L479 AbstractCegarLoop]: Abstraction has 2054 states and 2213 transitions. [2020-10-12 14:04:51,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:04:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2213 transitions. [2020-10-12 14:04:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2020-10-12 14:04:51,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:51,820 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:51,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:04:51,821 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:51,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:51,821 INFO L82 PathProgramCache]: Analyzing trace with hash -661525599, now seen corresponding path program 1 times [2020-10-12 14:04:51,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:51,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447260358] [2020-10-12 14:04:51,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:51,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:52,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:53,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:53,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:53,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:54,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:56,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:56,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 671 [2020-10-12 14:04:56,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:04:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 14:04:56,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:56,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:04:56,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 478 [2020-10-12 14:04:56,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:04:56,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:57,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:57,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:57,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:57,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:04:57,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:57,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:57,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:57,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:57,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:04:57,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:57,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:57,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:57,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:57,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:57,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:57,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:57,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:57,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:57,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:57,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:04:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:57,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:57,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:04:57,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:57,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:04:57,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:04:57,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:57,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:04:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:57,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:57,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:57,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:57,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-12 14:04:57,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:57,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:04:57,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:57,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:04:57,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,536 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-12 14:04:58,817 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 66 [2020-10-12 14:04:59,036 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2020-10-12 14:04:59,278 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2020-10-12 14:04:59,549 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-12 14:04:59,806 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-10-12 14:05:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 490 proven. 2 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2020-10-12 14:05:02,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447260358] [2020-10-12 14:05:02,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:02,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:05:02,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425667786] [2020-10-12 14:05:02,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:05:02,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:02,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:05:02,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:05:02,207 INFO L87 Difference]: Start difference. First operand 2054 states and 2213 transitions. Second operand 13 states. [2020-10-12 14:05:02,767 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2020-10-12 14:05:02,984 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2020-10-12 14:05:03,350 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2020-10-12 14:05:03,579 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2020-10-12 14:05:03,839 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2020-10-12 14:05:04,134 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2020-10-12 14:05:04,423 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 82 [2020-10-12 14:05:05,359 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 50 [2020-10-12 14:05:05,580 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2020-10-12 14:05:05,944 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 54 [2020-10-12 14:05:06,233 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 60 [2020-10-12 14:05:06,546 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2020-10-12 14:05:06,830 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 65 [2020-10-12 14:05:07,066 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2020-10-12 14:05:07,472 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-12 14:05:07,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:07,669 INFO L93 Difference]: Finished difference Result 3944 states and 4281 transitions. [2020-10-12 14:05:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:05:07,670 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 653 [2020-10-12 14:05:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:07,681 INFO L225 Difference]: With dead ends: 3944 [2020-10-12 14:05:07,681 INFO L226 Difference]: Without dead ends: 2074 [2020-10-12 14:05:07,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2020-10-12 14:05:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2020-10-12 14:05:07,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2052. [2020-10-12 14:05:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2052 states. [2020-10-12 14:05:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 2197 transitions. [2020-10-12 14:05:07,726 INFO L78 Accepts]: Start accepts. Automaton has 2052 states and 2197 transitions. Word has length 653 [2020-10-12 14:05:07,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:07,727 INFO L479 AbstractCegarLoop]: Abstraction has 2052 states and 2197 transitions. [2020-10-12 14:05:07,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:05:07,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2052 states and 2197 transitions. [2020-10-12 14:05:07,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2020-10-12 14:05:07,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:07,735 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:07,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:05:07,735 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:07,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:07,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1475675317, now seen corresponding path program 1 times [2020-10-12 14:05:07,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:07,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698703871] [2020-10-12 14:05:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:08,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:09,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:09,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 697 [2020-10-12 14:05:12,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:05:12,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 14:05:12,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:05:12,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 504 [2020-10-12 14:05:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:05:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:05:12,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:13,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:13,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:13,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:13,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:05:13,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:13,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:13,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:13,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:13,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:13,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:13,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:05:13,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:13,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:13,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:13,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:13,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:13,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:05:13,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:13,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:05:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:13,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:13,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:13,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:05:13,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:05:13,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:05:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:13,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:05:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:13,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:13,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:13,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:13,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:13,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-12 14:05:13,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:05:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:05:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 516 proven. 2 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2020-10-12 14:05:15,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698703871] [2020-10-12 14:05:15,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:15,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:05:15,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201380402] [2020-10-12 14:05:15,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:05:15,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:15,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:05:15,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:05:15,599 INFO L87 Difference]: Start difference. First operand 2052 states and 2197 transitions. Second operand 13 states. [2020-10-12 14:05:16,534 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-12 14:05:16,848 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-10-12 14:05:17,071 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-12 14:05:17,279 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-12 14:05:17,629 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2020-10-12 14:05:17,915 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2020-10-12 14:05:18,151 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-10-12 14:05:19,298 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2020-10-12 14:05:19,507 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2020-10-12 14:05:19,689 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2020-10-12 14:05:19,978 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2020-10-12 14:05:20,236 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2020-10-12 14:05:20,635 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-12 14:05:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:20,810 INFO L93 Difference]: Finished difference Result 3940 states and 4247 transitions. [2020-10-12 14:05:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:05:20,810 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 679 [2020-10-12 14:05:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:20,820 INFO L225 Difference]: With dead ends: 3940 [2020-10-12 14:05:20,820 INFO L226 Difference]: Without dead ends: 2249 [2020-10-12 14:05:20,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:05:20,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-10-12 14:05:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2227. [2020-10-12 14:05:20,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2227 states. [2020-10-12 14:05:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 2376 transitions. [2020-10-12 14:05:20,869 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 2376 transitions. Word has length 679 [2020-10-12 14:05:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:20,871 INFO L479 AbstractCegarLoop]: Abstraction has 2227 states and 2376 transitions. [2020-10-12 14:05:20,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:05:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 2376 transitions. [2020-10-12 14:05:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2020-10-12 14:05:20,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:20,879 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:20,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:05:20,879 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:20,880 INFO L82 PathProgramCache]: Analyzing trace with hash 802321465, now seen corresponding path program 1 times [2020-10-12 14:05:20,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:20,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492382454] [2020-10-12 14:05:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:21,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:21,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:21,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:23,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:23,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:26,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:26,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 715 [2020-10-12 14:05:26,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:05:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 14:05:26,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:05:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:05:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:05:26,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:26,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:26,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:26,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:26,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:26,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:26,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:05:26,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:26,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:26,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:26,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:26,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:26,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:26,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:26,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:26,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:26,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:26,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:26,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:26,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:26,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:05:26,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:05:26,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:26,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:05:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:26,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:26,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:05:26,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:27,320 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-10-12 14:05:27,503 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2020-10-12 14:05:27,693 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2020-10-12 14:05:27,885 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2020-10-12 14:05:28,080 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-12 14:05:28,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-12 14:05:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:28,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:28,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:28,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:28,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:28,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:05:28,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:28,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:05:28,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:28,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 367 proven. 176 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2020-10-12 14:05:30,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492382454] [2020-10-12 14:05:30,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:30,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:05:30,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666440525] [2020-10-12 14:05:30,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:05:30,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:30,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:05:30,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:05:30,061 INFO L87 Difference]: Start difference. First operand 2227 states and 2376 transitions. Second operand 13 states. [2020-10-12 14:05:30,796 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-12 14:05:30,959 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-12 14:05:31,237 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-12 14:05:31,422 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 14:05:32,109 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2020-10-12 14:05:32,692 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 90 [2020-10-12 14:05:33,181 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-10-12 14:05:33,375 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2020-10-12 14:05:33,691 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2020-10-12 14:05:33,926 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2020-10-12 14:05:34,341 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2020-10-12 14:05:34,765 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 68 [2020-10-12 14:05:35,139 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2020-10-12 14:05:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:35,543 INFO L93 Difference]: Finished difference Result 4462 states and 4772 transitions. [2020-10-12 14:05:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:05:35,545 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 697 [2020-10-12 14:05:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:35,554 INFO L225 Difference]: With dead ends: 4462 [2020-10-12 14:05:35,555 INFO L226 Difference]: Without dead ends: 2198 [2020-10-12 14:05:35,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:05:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2020-10-12 14:05:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1970. [2020-10-12 14:05:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1970 states. [2020-10-12 14:05:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2112 transitions. [2020-10-12 14:05:35,601 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2112 transitions. Word has length 697 [2020-10-12 14:05:35,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:35,602 INFO L479 AbstractCegarLoop]: Abstraction has 1970 states and 2112 transitions. [2020-10-12 14:05:35,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:05:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2112 transitions. [2020-10-12 14:05:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2020-10-12 14:05:35,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:35,610 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:35,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:05:35,610 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:35,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:35,611 INFO L82 PathProgramCache]: Analyzing trace with hash -708383262, now seen corresponding path program 1 times [2020-10-12 14:05:35,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:35,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428796329] [2020-10-12 14:05:35,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:35,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:35,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:36,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:37,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:40,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:40,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 722 [2020-10-12 14:05:40,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:05:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 14:05:40,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:05:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:05:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:05:40,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:40,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:40,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:40,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:40,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:40,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:40,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:05:40,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:40,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:40,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:40,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:40,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:40,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:40,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:40,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:40,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:40,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:05:40,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:40,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:40,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:40,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:40,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:41,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:41,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:41,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:41,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:05:41,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:41,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:41,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:41,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:05:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:41,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:05:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:41,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:41,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:41,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:41,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:05:41,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:41,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-12 14:05:41,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:05:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:05:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:42,016 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-10-12 14:05:42,298 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-12 14:05:42,598 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 78 [2020-10-12 14:05:42,923 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2020-10-12 14:05:43,260 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 85 [2020-10-12 14:05:43,611 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 89 [2020-10-12 14:05:43,753 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-10-12 14:05:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-12 14:05:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:44,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:44,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:44,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:44,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:44,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:05:44,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:05:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 374 proven. 176 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2020-10-12 14:05:46,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428796329] [2020-10-12 14:05:46,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:46,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:05:46,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289345345] [2020-10-12 14:05:46,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:05:46,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:46,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:05:46,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:05:46,612 INFO L87 Difference]: Start difference. First operand 1970 states and 2112 transitions. Second operand 13 states. [2020-10-12 14:05:47,379 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-12 14:05:47,878 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 102 [2020-10-12 14:05:48,317 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2020-10-12 14:05:48,658 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2020-10-12 14:05:48,887 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2020-10-12 14:05:49,156 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2020-10-12 14:05:49,451 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 94 [2020-10-12 14:05:49,833 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 67 [2020-10-12 14:05:50,048 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-10-12 14:05:50,796 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 60 [2020-10-12 14:05:51,465 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2020-10-12 14:05:51,852 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 66 [2020-10-12 14:05:52,127 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 69 [2020-10-12 14:05:52,438 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2020-10-12 14:05:52,766 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 76 [2020-10-12 14:05:53,224 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2020-10-12 14:05:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:53,594 INFO L93 Difference]: Finished difference Result 4132 states and 4448 transitions. [2020-10-12 14:05:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:05:53,597 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 704 [2020-10-12 14:05:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:53,605 INFO L225 Difference]: With dead ends: 4132 [2020-10-12 14:05:53,605 INFO L226 Difference]: Without dead ends: 2302 [2020-10-12 14:05:53,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:05:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2020-10-12 14:05:53,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2208. [2020-10-12 14:05:53,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2020-10-12 14:05:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2357 transitions. [2020-10-12 14:05:53,652 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2357 transitions. Word has length 704 [2020-10-12 14:05:53,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:53,652 INFO L479 AbstractCegarLoop]: Abstraction has 2208 states and 2357 transitions. [2020-10-12 14:05:53,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:05:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2357 transitions. [2020-10-12 14:05:53,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-10-12 14:05:53,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:53,661 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:53,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:05:53,661 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:53,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:53,662 INFO L82 PathProgramCache]: Analyzing trace with hash 450448302, now seen corresponding path program 1 times [2020-10-12 14:05:53,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:53,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224620957] [2020-10-12 14:05:53,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:53,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:56,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:56,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 805 [2020-10-12 14:05:56,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:05:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3160 [2020-10-12 14:05:56,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:05:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-12 14:05:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:05:56,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:57,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:57,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:57,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:57,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:05:57,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:57,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:57,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:57,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:57,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:57,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:05:57,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:57,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:57,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:57,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:57,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:57,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:05:57,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:57,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:57,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:57,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:05:57,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:05:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:57,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:05:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:57,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:57,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:05:57,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:57,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:05:57,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:57,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:57,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:57,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:57,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:57,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:05:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:05:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:57,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:05:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:57,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:57,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:57,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:57,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-12 14:05:57,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:05:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:05:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:58,428 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2020-10-12 14:05:58,577 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2020-10-12 14:05:58,743 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 14:05:58,925 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-12 14:05:59,118 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-10-12 14:06:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1612 backedges. 629 proven. 2 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2020-10-12 14:06:01,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224620957] [2020-10-12 14:06:01,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:01,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:06:01,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756977051] [2020-10-12 14:06:01,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:06:01,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:01,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:06:01,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:06:01,313 INFO L87 Difference]: Start difference. First operand 2208 states and 2357 transitions. Second operand 13 states. [2020-10-12 14:06:01,807 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 14:06:02,000 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-12 14:06:02,237 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:06:02,431 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-12 14:06:02,720 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-12 14:06:03,015 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-10-12 14:06:03,365 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2020-10-12 14:06:04,282 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-12 14:06:04,526 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-10-12 14:06:04,802 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-10-12 14:06:05,033 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2020-10-12 14:06:05,436 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2020-10-12 14:06:05,806 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2020-10-12 14:06:06,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:06,257 INFO L93 Difference]: Finished difference Result 4420 states and 4736 transitions. [2020-10-12 14:06:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:06:06,261 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 785 [2020-10-12 14:06:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:06,271 INFO L225 Difference]: With dead ends: 4420 [2020-10-12 14:06:06,272 INFO L226 Difference]: Without dead ends: 2294 [2020-10-12 14:06:06,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:06:06,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2020-10-12 14:06:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2282. [2020-10-12 14:06:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2282 states. [2020-10-12 14:06:06,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 2432 transitions. [2020-10-12 14:06:06,316 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 2432 transitions. Word has length 785 [2020-10-12 14:06:06,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:06,317 INFO L479 AbstractCegarLoop]: Abstraction has 2282 states and 2432 transitions. [2020-10-12 14:06:06,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:06:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 2432 transitions. [2020-10-12 14:06:06,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2020-10-12 14:06:06,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:06,327 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:06,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:06:06,327 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:06,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:06,328 INFO L82 PathProgramCache]: Analyzing trace with hash -985110678, now seen corresponding path program 1 times [2020-10-12 14:06:06,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:06,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071880982] [2020-10-12 14:06:06,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:06,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:06,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:07,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:10,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 879 [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4233 [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 14:06:10,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:10,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:10,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:10,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:10,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:10,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:06:10,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:10,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:10,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:10,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:10,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:10,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:10,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:10,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:06:10,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:10,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:10,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:11,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:11,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:11,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:11,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:06:11,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:11,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:11,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:11,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:06:11,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:11,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:11,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:11,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:06:11,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:11,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:06:11,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:11,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:11,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:11,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:06:11,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:06:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:11,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:11,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:11,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-12 14:06:11,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:11,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 14:06:11,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 14:06:11,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:11,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-12 14:06:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:11,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:11,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:11,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:11,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:11,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:11,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-12 14:06:11,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:06:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:06:11,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:12,230 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-10-12 14:06:12,466 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-10-12 14:06:12,714 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2020-10-12 14:06:12,980 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2020-10-12 14:06:13,265 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2020-10-12 14:06:13,559 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2020-10-12 14:06:16,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1857 backedges. 703 proven. 2 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-10-12 14:06:16,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071880982] [2020-10-12 14:06:16,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:16,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:06:16,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580322266] [2020-10-12 14:06:16,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:06:16,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:16,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:06:16,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:06:16,170 INFO L87 Difference]: Start difference. First operand 2282 states and 2432 transitions. Second operand 13 states. [2020-10-12 14:06:17,080 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-12 14:06:17,457 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-10-12 14:06:17,638 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2020-10-12 14:06:17,856 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2020-10-12 14:06:18,102 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2020-10-12 14:06:18,357 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2020-10-12 14:06:18,681 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 88 [2020-10-12 14:06:19,043 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2020-10-12 14:06:19,352 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 62 [2020-10-12 14:06:19,537 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2020-10-12 14:06:20,493 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 54 [2020-10-12 14:06:20,710 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2020-10-12 14:06:20,954 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2020-10-12 14:06:21,235 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2020-10-12 14:06:21,515 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2020-10-12 14:06:21,867 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 73 [2020-10-12 14:06:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:22,189 INFO L93 Difference]: Finished difference Result 4578 states and 4898 transitions. [2020-10-12 14:06:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:06:22,190 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 859 [2020-10-12 14:06:22,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:22,198 INFO L225 Difference]: With dead ends: 4578 [2020-10-12 14:06:22,198 INFO L226 Difference]: Without dead ends: 2051 [2020-10-12 14:06:22,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=268, Invalid=662, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:06:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2020-10-12 14:06:22,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 2029. [2020-10-12 14:06:22,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2029 states. [2020-10-12 14:06:22,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2162 transitions. [2020-10-12 14:06:22,237 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2162 transitions. Word has length 859 [2020-10-12 14:06:22,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:22,238 INFO L479 AbstractCegarLoop]: Abstraction has 2029 states and 2162 transitions. [2020-10-12 14:06:22,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:06:22,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2162 transitions. [2020-10-12 14:06:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2020-10-12 14:06:22,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:22,247 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:22,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:06:22,247 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:22,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1567813609, now seen corresponding path program 1 times [2020-10-12 14:06:22,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:22,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001792398] [2020-10-12 14:06:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:22,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 883 [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:06:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 14:06:22,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:23,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:23,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:23,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:23,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:06:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:06:23,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:06:23,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:06:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:06:23,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:06:23,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:06:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:23,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:06:23,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:23,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:06:23,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 46 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-12 14:06:23,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001792398] [2020-10-12 14:06:23,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:23,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:06:23,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710641771] [2020-10-12 14:06:23,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:06:23,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:23,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:06:23,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:06:23,670 INFO L87 Difference]: Start difference. First operand 2029 states and 2162 transitions. Second operand 5 states. [2020-10-12 14:06:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:24,883 INFO L93 Difference]: Finished difference Result 4616 states and 5011 transitions. [2020-10-12 14:06:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:06:24,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 861 [2020-10-12 14:06:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:24,900 INFO L225 Difference]: With dead ends: 4616 [2020-10-12 14:06:24,901 INFO L226 Difference]: Without dead ends: 2777 [2020-10-12 14:06:24,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:06:24,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2020-10-12 14:06:24,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2773. [2020-10-12 14:06:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2773 states. [2020-10-12 14:06:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 3002 transitions. [2020-10-12 14:06:24,957 INFO L78 Accepts]: Start accepts. Automaton has 2773 states and 3002 transitions. Word has length 861 [2020-10-12 14:06:24,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:24,958 INFO L479 AbstractCegarLoop]: Abstraction has 2773 states and 3002 transitions. [2020-10-12 14:06:24,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:06:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2773 states and 3002 transitions. [2020-10-12 14:06:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2020-10-12 14:06:24,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:24,973 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:24,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:06:24,973 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:24,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:24,974 INFO L82 PathProgramCache]: Analyzing trace with hash -2055830286, now seen corresponding path program 1 times [2020-10-12 14:06:24,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:24,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298649277] [2020-10-12 14:06:24,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:25,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:25,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 959 [2020-10-12 14:06:27,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2010 [2020-10-12 14:06:27,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:06:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:06:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:06:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:27,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:06:27,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:27,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:06:27,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:27,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:27,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:06:27,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:06:27,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:06:27,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:06:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:06:27,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:06:27,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:06:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:06:27,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:06:27,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:06:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:27,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:06:27,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:06:27,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:27,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:06:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:27,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:27,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:27,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:06:27,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:27,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:06:27,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:06:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:06:27,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:28,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2596 backedges. 567 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-12 14:06:28,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298649277] [2020-10-12 14:06:28,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:28,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:06:28,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953065787] [2020-10-12 14:06:28,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:06:28,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:28,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:06:28,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:06:28,128 INFO L87 Difference]: Start difference. First operand 2773 states and 3002 transitions. Second operand 8 states. [2020-10-12 14:06:30,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:30,224 INFO L93 Difference]: Finished difference Result 6102 states and 6720 transitions. [2020-10-12 14:06:30,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:06:30,225 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 935 [2020-10-12 14:06:30,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:30,237 INFO L225 Difference]: With dead ends: 6102 [2020-10-12 14:06:30,238 INFO L226 Difference]: Without dead ends: 3519 [2020-10-12 14:06:30,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:06:30,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3519 states. [2020-10-12 14:06:30,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3519 to 3515. [2020-10-12 14:06:30,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3515 states. [2020-10-12 14:06:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3515 states to 3515 states and 3806 transitions. [2020-10-12 14:06:30,300 INFO L78 Accepts]: Start accepts. Automaton has 3515 states and 3806 transitions. Word has length 935 [2020-10-12 14:06:30,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:30,300 INFO L479 AbstractCegarLoop]: Abstraction has 3515 states and 3806 transitions. [2020-10-12 14:06:30,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:06:30,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3515 states and 3806 transitions. [2020-10-12 14:06:30,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2020-10-12 14:06:30,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:30,312 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:30,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:06:30,312 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:30,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:30,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1832999962, now seen corresponding path program 1 times [2020-10-12 14:06:30,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:30,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506832653] [2020-10-12 14:06:30,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:30,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:31,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:32,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:32,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 971 [2020-10-12 14:06:32,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2267 [2020-10-12 14:06:32,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:06:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:06:32,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-12 14:06:32,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:32,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:06:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:32,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:32,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:32,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:32,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:32,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:32,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:32,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:32,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:32,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:32,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:06:32,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:32,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:32,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:32,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:32,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:32,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:32,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:32,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:06:32,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:32,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:06:32,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:32,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:32,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:32,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:06:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:33,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:33,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:33,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:06:33,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:06:33,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:33,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:33,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:06:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:33,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:33,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:33,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:06:33,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:33,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:06:33,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:33,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:06:33,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:33,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:06:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:33,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:06:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:33,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:06:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:33,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:33,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:06:33,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:33,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:06:33,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:33,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:06:33,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:33,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:06:33,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2665 backedges. 1214 proven. 85 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-12 14:06:33,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506832653] [2020-10-12 14:06:33,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:33,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:06:33,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090564285] [2020-10-12 14:06:33,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:06:33,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:33,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:06:33,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:06:33,844 INFO L87 Difference]: Start difference. First operand 3515 states and 3806 transitions. Second operand 10 states. [2020-10-12 14:06:36,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:36,377 INFO L93 Difference]: Finished difference Result 8162 states and 9022 transitions. [2020-10-12 14:06:36,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 14:06:36,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 947 [2020-10-12 14:06:36,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:36,394 INFO L225 Difference]: With dead ends: 8162 [2020-10-12 14:06:36,394 INFO L226 Difference]: Without dead ends: 4837 [2020-10-12 14:06:36,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-12 14:06:36,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2020-10-12 14:06:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 4821. [2020-10-12 14:06:36,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4821 states. [2020-10-12 14:06:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4821 states to 4821 states and 5346 transitions. [2020-10-12 14:06:36,477 INFO L78 Accepts]: Start accepts. Automaton has 4821 states and 5346 transitions. Word has length 947 [2020-10-12 14:06:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:36,478 INFO L479 AbstractCegarLoop]: Abstraction has 4821 states and 5346 transitions. [2020-10-12 14:06:36,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:06:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4821 states and 5346 transitions. [2020-10-12 14:06:36,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1349 [2020-10-12 14:06:36,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:36,498 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:36,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:06:36,499 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:36,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:36,499 INFO L82 PathProgramCache]: Analyzing trace with hash 629957032, now seen corresponding path program 1 times [2020-10-12 14:06:36,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:36,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885970890] [2020-10-12 14:06:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:37,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:37,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:41,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:41,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1378 [2020-10-12 14:06:41,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:06:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 14:06:41,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:06:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1366 [2020-10-12 14:06:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 14:06:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:41,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:41,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:41,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:41,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:41,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:41,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:06:41,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:41,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:41,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:41,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:41,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:42,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:42,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:42,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:06:42,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:06:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:06:42,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:06:42,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:06:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:06:42,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:06:42,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:06:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:06:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:06:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:06:42,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:06:42,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:06:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:42,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:06:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:42,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:42,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:42,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:06:42,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:42,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:06:42,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:42,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:42,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:06:42,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5720 backedges. 74 proven. 11 refuted. 0 times theorem prover too weak. 5635 trivial. 0 not checked. [2020-10-12 14:06:43,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885970890] [2020-10-12 14:06:43,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:43,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:06:43,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274019665] [2020-10-12 14:06:43,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:06:43,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:43,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:06:43,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:06:43,155 INFO L87 Difference]: Start difference. First operand 4821 states and 5346 transitions. Second operand 5 states. [2020-10-12 14:06:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:44,342 INFO L93 Difference]: Finished difference Result 10004 states and 11288 transitions. [2020-10-12 14:06:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:06:44,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1348 [2020-10-12 14:06:44,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:44,357 INFO L225 Difference]: With dead ends: 10004 [2020-10-12 14:06:44,358 INFO L226 Difference]: Without dead ends: 5373 [2020-10-12 14:06:44,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:06:44,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2020-10-12 14:06:44,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5371. [2020-10-12 14:06:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5371 states. [2020-10-12 14:06:44,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6021 transitions. [2020-10-12 14:06:44,456 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6021 transitions. Word has length 1348 [2020-10-12 14:06:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:44,457 INFO L479 AbstractCegarLoop]: Abstraction has 5371 states and 6021 transitions. [2020-10-12 14:06:44,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:06:44,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6021 transitions. [2020-10-12 14:06:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2020-10-12 14:06:44,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:44,480 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:44,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:06:44,480 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:44,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1457148959, now seen corresponding path program 1 times [2020-10-12 14:06:44,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:44,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739354748] [2020-10-12 14:06:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:44,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:45,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:47,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:48,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1445 [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1253 [2020-10-12 14:06:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 14:06:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:49,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:49,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:49,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:49,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:50,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:06:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:50,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:06:50,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:50,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:06:50,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:06:50,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:06:50,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:06:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:06:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:06:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:50,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:06:50,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:06:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:06:50,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:06:50,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:06:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:06:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:06:50,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:06:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:06:50,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:50,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:06:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:50,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 14:06:50,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:50,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-12 14:06:50,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:06:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 14:06:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:51,371 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2020-10-12 14:06:51,634 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-10-12 14:06:51,902 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-10-12 14:06:52,177 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2020-10-12 14:06:52,458 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-10-12 14:06:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5902 backedges. 1294 proven. 2 refuted. 0 times theorem prover too weak. 4606 trivial. 0 not checked. [2020-10-12 14:06:55,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739354748] [2020-10-12 14:06:55,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:55,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:06:55,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737739319] [2020-10-12 14:06:55,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:06:55,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:55,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:06:55,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:06:55,552 INFO L87 Difference]: Start difference. First operand 5371 states and 6021 transitions. Second operand 13 states. [2020-10-12 14:06:56,291 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-10-12 14:06:56,565 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-12 14:06:56,798 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-12 14:06:57,123 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-12 14:06:57,408 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-12 14:06:57,625 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-10-12 14:06:58,026 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-10-12 14:06:58,657 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-12 14:06:58,935 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-12 14:06:59,185 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-10-12 14:06:59,417 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-12 14:06:59,713 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-12 14:06:59,950 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2020-10-12 14:07:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:00,406 INFO L93 Difference]: Finished difference Result 10740 states and 12061 transitions. [2020-10-12 14:07:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:07:00,406 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1415 [2020-10-12 14:07:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:00,418 INFO L225 Difference]: With dead ends: 10740 [2020-10-12 14:07:00,418 INFO L226 Difference]: Without dead ends: 5427 [2020-10-12 14:07:00,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=255, Invalid=615, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:07:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5427 states. [2020-10-12 14:07:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5427 to 5145. [2020-10-12 14:07:00,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5145 states. [2020-10-12 14:07:00,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 5788 transitions. [2020-10-12 14:07:00,525 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 5788 transitions. Word has length 1415 [2020-10-12 14:07:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:00,527 INFO L479 AbstractCegarLoop]: Abstraction has 5145 states and 5788 transitions. [2020-10-12 14:07:00,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:07:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 5788 transitions. [2020-10-12 14:07:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2020-10-12 14:07:00,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:00,558 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:00,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:07:00,558 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:00,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:00,559 INFO L82 PathProgramCache]: Analyzing trace with hash 350298015, now seen corresponding path program 1 times [2020-10-12 14:07:00,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:00,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371414203] [2020-10-12 14:07:00,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:01,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1509 [2020-10-12 14:07:02,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1485 [2020-10-12 14:07:02,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-12 14:07:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 14:07:02,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:02,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:02,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:02,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:07:02,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:02,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:02,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:02,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:02,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:02,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:02,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:02,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:02,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:02,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:02,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:07:02,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:02,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:07:02,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:02,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:02,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:02,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:02,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:02,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 14:07:02,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 14:07:02,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-12 14:07:02,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6104 backedges. 74 proven. 11 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-10-12 14:07:03,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371414203] [2020-10-12 14:07:03,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:03,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:07:03,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708949459] [2020-10-12 14:07:03,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:07:03,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:03,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:07:03,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:07:03,765 INFO L87 Difference]: Start difference. First operand 5145 states and 5788 transitions. Second operand 5 states. [2020-10-12 14:07:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:04,990 INFO L93 Difference]: Finished difference Result 11014 states and 12555 transitions. [2020-10-12 14:07:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:07:04,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1479 [2020-10-12 14:07:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:05,004 INFO L225 Difference]: With dead ends: 11014 [2020-10-12 14:07:05,004 INFO L226 Difference]: Without dead ends: 5503 [2020-10-12 14:07:05,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:07:05,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-10-12 14:07:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5133. [2020-10-12 14:07:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5133 states. [2020-10-12 14:07:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 5690 transitions. [2020-10-12 14:07:05,113 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 5690 transitions. Word has length 1479 [2020-10-12 14:07:05,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:05,117 INFO L479 AbstractCegarLoop]: Abstraction has 5133 states and 5690 transitions. [2020-10-12 14:07:05,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:07:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 5690 transitions. [2020-10-12 14:07:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1508 [2020-10-12 14:07:05,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:05,150 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:05,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:07:05,150 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:05,151 INFO L82 PathProgramCache]: Analyzing trace with hash -354164236, now seen corresponding path program 1 times [2020-10-12 14:07:05,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:05,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611666312] [2020-10-12 14:07:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:05,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:06,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:07,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1539 [2020-10-12 14:07:09,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:07:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3874 [2020-10-12 14:07:09,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1527 [2020-10-12 14:07:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 14:07:09,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:09,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:09,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:09,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:09,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:09,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:07:09,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:09,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:09,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:09,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:07:09,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:09,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:09,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:09,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:07:09,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:09,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:07:09,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:09,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:09,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:09,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:07:09,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:09,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:09,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:09,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:07:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:10,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:10,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:10,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:07:10,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:10,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:07:10,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:10,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:10,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 14:07:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 6879 backedges. 81 proven. 12 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2020-10-12 14:07:11,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611666312] [2020-10-12 14:07:11,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:11,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:07:11,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955205251] [2020-10-12 14:07:11,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:07:11,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:11,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:07:11,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:07:11,164 INFO L87 Difference]: Start difference. First operand 5133 states and 5690 transitions. Second operand 5 states. [2020-10-12 14:07:12,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:12,283 INFO L93 Difference]: Finished difference Result 10893 states and 12138 transitions. [2020-10-12 14:07:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:07:12,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1507 [2020-10-12 14:07:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:12,314 INFO L225 Difference]: With dead ends: 10893 [2020-10-12 14:07:12,315 INFO L226 Difference]: Without dead ends: 5950 [2020-10-12 14:07:12,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:07:12,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2020-10-12 14:07:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 5766. [2020-10-12 14:07:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5766 states. [2020-10-12 14:07:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 6382 transitions. [2020-10-12 14:07:12,415 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 6382 transitions. Word has length 1507 [2020-10-12 14:07:12,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:12,416 INFO L479 AbstractCegarLoop]: Abstraction has 5766 states and 6382 transitions. [2020-10-12 14:07:12,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:07:12,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 6382 transitions. [2020-10-12 14:07:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2020-10-12 14:07:12,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:12,447 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:12,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:07:12,447 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:12,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1908497385, now seen corresponding path program 1 times [2020-10-12 14:07:12,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:12,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351557583] [2020-10-12 14:07:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:12,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:13,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1588 [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2054 [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 14:07:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:15,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:07:15,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:15,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:07:15,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:15,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:07:15,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:15,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:15,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:15,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:15,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:15,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:15,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:15,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:15,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:15,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:07:15,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:15,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:07:15,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:15,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:07:15,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 14:07:15,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:07:15,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:07:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 14:07:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 7161 backedges. 1371 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-12 14:07:17,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351557583] [2020-10-12 14:07:17,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:17,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:17,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071636103] [2020-10-12 14:07:17,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:17,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:17,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:17,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:17,324 INFO L87 Difference]: Start difference. First operand 5766 states and 6382 transitions. Second operand 7 states. [2020-10-12 14:07:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:18,813 INFO L93 Difference]: Finished difference Result 10887 states and 12096 transitions. [2020-10-12 14:07:18,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:07:18,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1556 [2020-10-12 14:07:18,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:18,827 INFO L225 Difference]: With dead ends: 10887 [2020-10-12 14:07:18,827 INFO L226 Difference]: Without dead ends: 4389 [2020-10-12 14:07:18,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:07:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2020-10-12 14:07:18,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 3651. [2020-10-12 14:07:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3651 states. [2020-10-12 14:07:18,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 3845 transitions. [2020-10-12 14:07:18,889 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 3845 transitions. Word has length 1556 [2020-10-12 14:07:18,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:18,890 INFO L479 AbstractCegarLoop]: Abstraction has 3651 states and 3845 transitions. [2020-10-12 14:07:18,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:18,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 3845 transitions. [2020-10-12 14:07:18,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1638 [2020-10-12 14:07:18,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:18,928 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:18,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:07:18,929 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1297454503, now seen corresponding path program 1 times [2020-10-12 14:07:18,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:18,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022825663] [2020-10-12 14:07:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:19,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:20,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:21,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1671 [2020-10-12 14:07:23,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:07:23,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4336 [2020-10-12 14:07:23,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:07:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-12 14:07:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-12 14:07:23,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:23,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:23,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:23,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:23,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:23,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:23,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:23,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:07:23,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:24,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:24,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:24,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:07:24,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:24,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:24,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:24,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:24,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:24,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:24,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:24,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:24,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:07:24,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:24,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:24,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:24,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:24,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:24,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:07:24,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:24,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:24,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:24,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:24,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:07:24,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:24,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:07:24,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:24,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:24,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 14:07:24,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:24,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:07:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 14:07:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:07:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 14:07:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1489 [2020-10-12 14:07:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:24,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:07:24,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:24,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-12 14:07:24,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 14:07:24,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8125 backedges. 2208 proven. 21 refuted. 0 times theorem prover too weak. 5896 trivial. 0 not checked. [2020-10-12 14:07:25,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022825663] [2020-10-12 14:07:25,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:25,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:25,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382497204] [2020-10-12 14:07:25,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:25,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:25,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:25,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:25,787 INFO L87 Difference]: Start difference. First operand 3651 states and 3845 transitions. Second operand 7 states. [2020-10-12 14:07:27,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:27,112 INFO L93 Difference]: Finished difference Result 6215 states and 6604 transitions. [2020-10-12 14:07:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:07:27,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1637 [2020-10-12 14:07:27,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:27,121 INFO L225 Difference]: With dead ends: 6215 [2020-10-12 14:07:27,122 INFO L226 Difference]: Without dead ends: 3839 [2020-10-12 14:07:27,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:07:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2020-10-12 14:07:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3643. [2020-10-12 14:07:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2020-10-12 14:07:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 3825 transitions. [2020-10-12 14:07:27,174 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 3825 transitions. Word has length 1637 [2020-10-12 14:07:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:27,175 INFO L479 AbstractCegarLoop]: Abstraction has 3643 states and 3825 transitions. [2020-10-12 14:07:27,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 3825 transitions. [2020-10-12 14:07:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1669 [2020-10-12 14:07:27,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:27,205 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:27,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 14:07:27,205 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:27,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:27,206 INFO L82 PathProgramCache]: Analyzing trace with hash -365946298, now seen corresponding path program 1 times [2020-10-12 14:07:27,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:27,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550912062] [2020-10-12 14:07:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:27,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:28,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:29,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:29,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1702 [2020-10-12 14:07:29,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2457 [2020-10-12 14:07:29,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:07:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 14:07:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:30,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:30,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:30,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:30,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:07:30,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:30,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:07:30,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:30,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:30,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:30,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:07:30,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:30,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:07:30,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:30,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:07:30,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:07:30,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:07:30,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:07:30,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:07:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:07:30,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:30,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:07:30,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:07:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1520 [2020-10-12 14:07:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 8437 backedges. 1285 proven. 111 refuted. 0 times theorem prover too weak. 7041 trivial. 0 not checked. [2020-10-12 14:07:32,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550912062] [2020-10-12 14:07:32,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:32,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:32,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415622711] [2020-10-12 14:07:32,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:32,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:32,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:32,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:32,056 INFO L87 Difference]: Start difference. First operand 3643 states and 3825 transitions. Second operand 7 states. [2020-10-12 14:07:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:33,362 INFO L93 Difference]: Finished difference Result 5968 states and 6320 transitions. [2020-10-12 14:07:33,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:07:33,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1668 [2020-10-12 14:07:33,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:33,372 INFO L225 Difference]: With dead ends: 5968 [2020-10-12 14:07:33,372 INFO L226 Difference]: Without dead ends: 3752 [2020-10-12 14:07:33,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:07:33,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2020-10-12 14:07:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3643. [2020-10-12 14:07:33,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2020-10-12 14:07:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 3821 transitions. [2020-10-12 14:07:33,424 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 3821 transitions. Word has length 1668 [2020-10-12 14:07:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:33,426 INFO L479 AbstractCegarLoop]: Abstraction has 3643 states and 3821 transitions. [2020-10-12 14:07:33,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:33,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 3821 transitions. [2020-10-12 14:07:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1686 [2020-10-12 14:07:33,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:33,453 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:33,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 14:07:33,454 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:33,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:33,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1616719289, now seen corresponding path program 1 times [2020-10-12 14:07:33,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:33,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786289238] [2020-10-12 14:07:33,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:33,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1719 [2020-10-12 14:07:35,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-10-12 14:07:35,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-12 14:07:35,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 14:07:35,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:35,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:07:35,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:35,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:07:35,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:35,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:35,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:35,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:35,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:35,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:35,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:35,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:35,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:35,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:35,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:35,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:07:35,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:07:35,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:07:35,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:35,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:07:35,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:07:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 14:07:35,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 14:07:35,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-12 14:07:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:35,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-12 14:07:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:35,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:35,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:35,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:07:35,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:35,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 14:07:35,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:35,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-12 14:07:35,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 8539 backedges. 1507 proven. 2 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2020-10-12 14:07:37,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786289238] [2020-10-12 14:07:37,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:37,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:37,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197555847] [2020-10-12 14:07:37,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:37,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:37,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:37,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:37,350 INFO L87 Difference]: Start difference. First operand 3643 states and 3821 transitions. Second operand 7 states. [2020-10-12 14:07:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:38,529 INFO L93 Difference]: Finished difference Result 6197 states and 6579 transitions. [2020-10-12 14:07:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:07:38,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1685 [2020-10-12 14:07:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:38,536 INFO L225 Difference]: With dead ends: 6197 [2020-10-12 14:07:38,536 INFO L226 Difference]: Without dead ends: 4013 [2020-10-12 14:07:38,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:07:38,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4013 states. [2020-10-12 14:07:38,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4013 to 3643. [2020-10-12 14:07:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2020-10-12 14:07:38,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 3814 transitions. [2020-10-12 14:07:38,582 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 3814 transitions. Word has length 1685 [2020-10-12 14:07:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:38,584 INFO L479 AbstractCegarLoop]: Abstraction has 3643 states and 3814 transitions. [2020-10-12 14:07:38,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:38,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 3814 transitions. [2020-10-12 14:07:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1736 [2020-10-12 14:07:38,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:38,613 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:38,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 14:07:38,614 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:38,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1431628867, now seen corresponding path program 1 times [2020-10-12 14:07:38,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:38,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710154988] [2020-10-12 14:07:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:39,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:40,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1769 [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3263 [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 14:07:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:42,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:07:42,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:42,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:42,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:42,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:07:42,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:42,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:42,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:42,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:42,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:42,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:42,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:42,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:42,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:42,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:42,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:07:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:42,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:07:42,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-12 14:07:42,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:42,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-12 14:07:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:42,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:42,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:43,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:43,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:07:43,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:43,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-12 14:07:43,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:07:43,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:43,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-12 14:07:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:43,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:43,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:43,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:07:43,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:43,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:07:43,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:07:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:43,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:44,811 INFO L134 CoverageAnalysis]: Checked inductivity of 8713 backedges. 1286 proven. 111 refuted. 0 times theorem prover too weak. 7316 trivial. 0 not checked. [2020-10-12 14:07:44,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710154988] [2020-10-12 14:07:44,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:44,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:44,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753442699] [2020-10-12 14:07:44,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:44,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:44,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:44,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:44,814 INFO L87 Difference]: Start difference. First operand 3643 states and 3814 transitions. Second operand 7 states. [2020-10-12 14:07:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:45,936 INFO L93 Difference]: Finished difference Result 5878 states and 6217 transitions. [2020-10-12 14:07:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:07:45,938 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1735 [2020-10-12 14:07:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:45,943 INFO L225 Difference]: With dead ends: 5878 [2020-10-12 14:07:45,943 INFO L226 Difference]: Without dead ends: 3665 [2020-10-12 14:07:45,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:07:45,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2020-10-12 14:07:45,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3641. [2020-10-12 14:07:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3641 states. [2020-10-12 14:07:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 3805 transitions. [2020-10-12 14:07:45,985 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 3805 transitions. Word has length 1735 [2020-10-12 14:07:45,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:45,987 INFO L479 AbstractCegarLoop]: Abstraction has 3641 states and 3805 transitions. [2020-10-12 14:07:45,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 3805 transitions. [2020-10-12 14:07:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2020-10-12 14:07:46,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:46,017 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:46,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 14:07:46,017 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:46,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1042608941, now seen corresponding path program 1 times [2020-10-12 14:07:46,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:46,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924756075] [2020-10-12 14:07:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:46,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1800 [2020-10-12 14:07:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1353 [2020-10-12 14:07:47,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-12 14:07:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:07:47,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:47,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:47,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:47,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:07:47,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:47,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:47,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:47,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:07:47,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:47,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:47,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:47,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:07:47,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:47,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:47,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:07:47,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:47,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:48,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:48,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:48,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:48,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:48,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:48,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:48,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:48,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:48,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:48,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:48,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:48,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:48,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:48,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:07:48,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:48,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:48,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:48,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:48,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:48,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:07:48,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:48,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:07:48,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:48,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:48,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:48,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:48,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:48,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:07:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:48,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:48,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:48,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:07:48,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:48,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:48,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:48,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:48,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:07:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:48,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:48,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:48,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 14:07:48,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:07:48,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-12 14:07:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:48,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-12 14:07:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:48,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:48,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:48,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 14:07:48,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:48,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:07:48,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 14:07:48,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:48,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1616 [2020-10-12 14:07:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:48,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:48,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:48,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9568 backedges. 1082 proven. 78 refuted. 0 times theorem prover too weak. 8408 trivial. 0 not checked. [2020-10-12 14:07:49,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924756075] [2020-10-12 14:07:49,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:49,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:49,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011850166] [2020-10-12 14:07:49,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:49,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:49,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:49,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:49,635 INFO L87 Difference]: Start difference. First operand 3641 states and 3805 transitions. Second operand 7 states. [2020-10-12 14:07:51,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:51,069 INFO L93 Difference]: Finished difference Result 6017 states and 6345 transitions. [2020-10-12 14:07:51,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:07:51,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1764 [2020-10-12 14:07:51,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:51,075 INFO L225 Difference]: With dead ends: 6017 [2020-10-12 14:07:51,076 INFO L226 Difference]: Without dead ends: 3835 [2020-10-12 14:07:51,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:07:51,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3835 states. [2020-10-12 14:07:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3835 to 3645. [2020-10-12 14:07:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3645 states. [2020-10-12 14:07:51,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 3798 transitions. [2020-10-12 14:07:51,123 INFO L78 Accepts]: Start accepts. Automaton has 3645 states and 3798 transitions. Word has length 1764 [2020-10-12 14:07:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:51,124 INFO L479 AbstractCegarLoop]: Abstraction has 3645 states and 3798 transitions. [2020-10-12 14:07:51,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3645 states and 3798 transitions. [2020-10-12 14:07:51,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1775 [2020-10-12 14:07:51,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:51,151 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:51,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 14:07:51,152 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:51,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:51,153 INFO L82 PathProgramCache]: Analyzing trace with hash -433638431, now seen corresponding path program 1 times [2020-10-12 14:07:51,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:51,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570455691] [2020-10-12 14:07:51,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:51,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:52,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:53,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking...