/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/Problem18_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:57:37,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:57:37,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:57:37,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:57:37,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:57:37,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:57:37,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:57:37,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:57:37,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:57:37,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:57:37,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:57:37,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:57:37,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:57:37,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:57:37,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:57:37,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:57:37,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:57:37,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:57:37,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:57:37,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:57:37,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:57:37,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:57:37,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:57:37,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:57:37,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:57:37,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:57:37,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:57:37,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:57:37,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:57:37,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:57:37,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:57:37,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:57:37,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:57:37,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:57:37,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:57:37,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:57:37,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:57:37,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:57:37,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:57:37,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:57:37,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:57:37,670 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 14:57:37,693 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:57:37,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:57:37,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:57:37,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:57:37,694 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:57:37,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:57:37,695 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:57:37,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:57:37,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:57:37,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:57:37,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:57:37,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:57:37,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:57:37,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:57:37,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:57:37,697 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:57:37,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:57:37,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:57:37,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:57:37,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:57:37,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:57:37,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:57:37,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:57:37,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:57:37,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:57:37,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:57:37,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:57:37,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:57:37,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:57:37,700 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 14:57:38,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:57:38,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:57:38,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:57:38,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:57:38,079 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:57:38,080 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14.c [2020-10-12 14:57:38,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf470ee0b/a797ea4af9ba48f6bbbb55aff06c38cd/FLAG73ac40736 [2020-10-12 14:57:38,891 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:57:38,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label14.c [2020-10-12 14:57:38,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf470ee0b/a797ea4af9ba48f6bbbb55aff06c38cd/FLAG73ac40736 [2020-10-12 14:57:39,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf470ee0b/a797ea4af9ba48f6bbbb55aff06c38cd [2020-10-12 14:57:39,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:57:39,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:57:39,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:57:39,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:57:39,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:57:39,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:57:39" (1/1) ... [2020-10-12 14:57:39,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180772d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:39, skipping insertion in model container [2020-10-12 14:57:39,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:57:39" (1/1) ... [2020-10-12 14:57:39,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:57:39,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:57:40,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:57:40,883 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:57:41,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:57:41,445 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:57:41,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41 WrapperNode [2020-10-12 14:57:41,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:57:41,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:57:41,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:57:41,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:57:41,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (1/1) ... [2020-10-12 14:57:41,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:57:41,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:57:41,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:57:41,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:57:41,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (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 14:57:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:57:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:57:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:57:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:57:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 14:57:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:57:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:57:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:57:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 14:57:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:57:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:57:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:57:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:57:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:57:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:57:48,203 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:57:48,203 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:57:48,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:57:48 BoogieIcfgContainer [2020-10-12 14:57:48,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:57:48,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:57:48,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:57:48,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:57:48,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:57:39" (1/3) ... [2020-10-12 14:57:48,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4635c274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:57:48, skipping insertion in model container [2020-10-12 14:57:48,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:41" (2/3) ... [2020-10-12 14:57:48,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4635c274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:57:48, skipping insertion in model container [2020-10-12 14:57:48,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:57:48" (3/3) ... [2020-10-12 14:57:48,224 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label14.c [2020-10-12 14:57:48,235 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:57:48,245 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:57:48,261 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:57:48,289 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:57:48,290 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:57:48,290 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:57:48,290 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:57:48,290 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:57:48,290 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:57:48,291 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:57:48,291 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:57:48,324 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 14:57:48,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 14:57:48,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:48,335 INFO L422 BasicCegarLoop]: trace histogram [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 14:57:48,336 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:48,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:48,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1001778367, now seen corresponding path program 1 times [2020-10-12 14:57:48,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:48,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562057840] [2020-10-12 14:57:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:48,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:49,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:49,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 14:57:49,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-12 14:57:49,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:57:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:57:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 14:57:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:57:49,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:49,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:49,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:49,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:49,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:49,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:57:49,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:57:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:49,209 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 14:57:49,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562057840] [2020-10-12 14:57:49,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:57:49,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:57:49,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877890348] [2020-10-12 14:57:49,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:57:49,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:49,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:57:49,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:57:49,241 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 14:57:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:57:59,655 INFO L93 Difference]: Finished difference Result 2286 states and 4364 transitions. [2020-10-12 14:57:59,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:57:59,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-12 14:57:59,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:57:59,694 INFO L225 Difference]: With dead ends: 2286 [2020-10-12 14:57:59,694 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 14:57:59,707 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 14:57:59,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 14:57:59,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1428. [2020-10-12 14:57:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-10-12 14:57:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2262 transitions. [2020-10-12 14:57:59,903 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2262 transitions. Word has length 56 [2020-10-12 14:57:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:57:59,904 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 2262 transitions. [2020-10-12 14:57:59,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:57:59,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2262 transitions. [2020-10-12 14:57:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 14:57:59,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:59,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:57:59,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:57:59,911 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:59,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1629917955, now seen corresponding path program 1 times [2020-10-12 14:57:59,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:59,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440352003] [2020-10-12 14:57:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:59,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:00,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:00,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:00,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 14:58:00,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:00,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-10-12 14:58:00,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:58:00,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:58:00,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:00,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:00,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:00,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:00,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:58:00,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:00,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:00,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:00,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:58:00,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 14:58:00,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:58:00,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:58:01,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440352003] [2020-10-12 14:58:01,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:58:01,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:58:01,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925710659] [2020-10-12 14:58:01,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:01,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:01,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:01,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:01,187 INFO L87 Difference]: Start difference. First operand 1428 states and 2262 transitions. Second operand 7 states. [2020-10-12 14:58:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:12,496 INFO L93 Difference]: Finished difference Result 4335 states and 6908 transitions. [2020-10-12 14:58:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:58:12,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-12 14:58:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:12,515 INFO L225 Difference]: With dead ends: 4335 [2020-10-12 14:58:12,515 INFO L226 Difference]: Without dead ends: 2913 [2020-10-12 14:58:12,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:58:12,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2020-10-12 14:58:12,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2882. [2020-10-12 14:58:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2882 states. [2020-10-12 14:58:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 3890 transitions. [2020-10-12 14:58:12,622 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 3890 transitions. Word has length 125 [2020-10-12 14:58:12,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:12,623 INFO L479 AbstractCegarLoop]: Abstraction has 2882 states and 3890 transitions. [2020-10-12 14:58:12,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 3890 transitions. [2020-10-12 14:58:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-12 14:58:12,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:12,629 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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 14:58:12,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:58:12,630 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:12,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:12,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1500059178, now seen corresponding path program 1 times [2020-10-12 14:58:12,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:12,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349300966] [2020-10-12 14:58:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:12,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:12,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:14,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:16,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:16,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-12 14:58:16,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3505 [2020-10-12 14:58:16,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:58:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:16,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:16,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:16,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:16,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:16,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:58:16,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:16,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:16,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:16,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:16,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:58:16,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-12 14:58:16,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:16,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:16,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:16,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 14:58:16,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:16,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 14:58:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:16,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:16,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:16,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:58:16,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:16,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 14:58:16,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:58:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 98 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:58:17,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349300966] [2020-10-12 14:58:17,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:17,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:58:17,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336661425] [2020-10-12 14:58:17,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:17,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:17,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:17,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:17,086 INFO L87 Difference]: Start difference. First operand 2882 states and 3890 transitions. Second operand 7 states. [2020-10-12 14:58:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:30,787 INFO L93 Difference]: Finished difference Result 7406 states and 9748 transitions. [2020-10-12 14:58:30,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:58:30,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 247 [2020-10-12 14:58:30,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:30,816 INFO L225 Difference]: With dead ends: 7406 [2020-10-12 14:58:30,816 INFO L226 Difference]: Without dead ends: 4530 [2020-10-12 14:58:30,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:58:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4530 states. [2020-10-12 14:58:30,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4530 to 4391. [2020-10-12 14:58:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2020-10-12 14:58:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 5623 transitions. [2020-10-12 14:58:30,978 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 5623 transitions. Word has length 247 [2020-10-12 14:58:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:30,980 INFO L479 AbstractCegarLoop]: Abstraction has 4391 states and 5623 transitions. [2020-10-12 14:58:30,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:30,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 5623 transitions. [2020-10-12 14:58:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-10-12 14:58:30,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:30,991 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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 14:58:30,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:58:30,992 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:30,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:30,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1502934417, now seen corresponding path program 1 times [2020-10-12 14:58:30,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:30,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299925532] [2020-10-12 14:58:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:31,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:31,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:31,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:34,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:34,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-12 14:58:34,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:34,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3824 [2020-10-12 14:58:34,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:34,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:58:34,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:34,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 369 [2020-10-12 14:58:34,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:35,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:35,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:35,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:35,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:35,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:35,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:58:35,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:35,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:35,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:35,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:35,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:35,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:35,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:35,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:35,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:35,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-10-12 14:58:35,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:58:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:35,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:35,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:35,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:35,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:35,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:35,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:35,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:58:35,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:58:35,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 14:58:36,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299925532] [2020-10-12 14:58:36,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:36,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:58:36,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474588236] [2020-10-12 14:58:36,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:36,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:36,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:36,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:36,599 INFO L87 Difference]: Start difference. First operand 4391 states and 5623 transitions. Second operand 7 states. [2020-10-12 14:58:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:46,403 INFO L93 Difference]: Finished difference Result 13365 states and 17325 transitions. [2020-10-12 14:58:46,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:58:46,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 363 [2020-10-12 14:58:46,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:46,450 INFO L225 Difference]: With dead ends: 13365 [2020-10-12 14:58:46,450 INFO L226 Difference]: Without dead ends: 8980 [2020-10-12 14:58:46,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:58:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8980 states. [2020-10-12 14:58:46,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8980 to 8070. [2020-10-12 14:58:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8070 states. [2020-10-12 14:58:46,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8070 states to 8070 states and 9785 transitions. [2020-10-12 14:58:46,650 INFO L78 Accepts]: Start accepts. Automaton has 8070 states and 9785 transitions. Word has length 363 [2020-10-12 14:58:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:46,652 INFO L479 AbstractCegarLoop]: Abstraction has 8070 states and 9785 transitions. [2020-10-12 14:58:46,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 8070 states and 9785 transitions. [2020-10-12 14:58:46,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2020-10-12 14:58:46,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:46,662 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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 14:58:46,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:58:46,663 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:46,663 INFO L82 PathProgramCache]: Analyzing trace with hash -2137546270, now seen corresponding path program 1 times [2020-10-12 14:58:46,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:46,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071512950] [2020-10-12 14:58:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:46,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:46,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:51,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:51,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 467 [2020-10-12 14:58:51,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:51,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 14:58:51,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:51,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:58:51,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 14:58:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:51,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:51,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:51,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:51,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:51,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:58:51,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:51,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:52,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:52,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:52,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:52,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-12 14:58:52,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:58:52,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:52,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:52,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:52,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:52,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:52,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:52,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 14:58:52,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:58:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:58:52,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:52,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 14:58:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:52,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:52,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:52,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 14:58:52,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:58:52,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 14:58:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:52,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 98 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:58:53,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071512950] [2020-10-12 14:58:53,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:53,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:58:53,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49802337] [2020-10-12 14:58:53,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:58:53,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:53,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:58:53,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:58:53,261 INFO L87 Difference]: Start difference. First operand 8070 states and 9785 transitions. Second operand 8 states. [2020-10-12 14:59:08,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:08,136 INFO L93 Difference]: Finished difference Result 23049 states and 28781 transitions. [2020-10-12 14:59:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:59:08,138 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 453 [2020-10-12 14:59:08,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:08,189 INFO L225 Difference]: With dead ends: 23049 [2020-10-12 14:59:08,190 INFO L226 Difference]: Without dead ends: 14985 [2020-10-12 14:59:08,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:59:08,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14985 states. [2020-10-12 14:59:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14985 to 14876. [2020-10-12 14:59:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14876 states. [2020-10-12 14:59:08,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14876 states to 14876 states and 18021 transitions. [2020-10-12 14:59:08,490 INFO L78 Accepts]: Start accepts. Automaton has 14876 states and 18021 transitions. Word has length 453 [2020-10-12 14:59:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:08,492 INFO L479 AbstractCegarLoop]: Abstraction has 14876 states and 18021 transitions. [2020-10-12 14:59:08,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:59:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 14876 states and 18021 transitions. [2020-10-12 14:59:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2020-10-12 14:59:08,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:08,535 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:08,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:59:08,536 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:08,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:08,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1242092086, now seen corresponding path program 1 times [2020-10-12 14:59:08,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:08,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244651887] [2020-10-12 14:59:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:08,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:09,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1000 [2020-10-12 14:59:13,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:13,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4877 [2020-10-12 14:59:13,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 14:59:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:59:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:14,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:14,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:14,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:14,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:59:14,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:14,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:14,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:14,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:14,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:59:14,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:14,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-12 14:59:14,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:14,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:14,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:14,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:14,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:59:14,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:14,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 14:59:14,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:14,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:14,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:14,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:59:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:14,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:14,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:14,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:59:14,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:59:14,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:14,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:59:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:14,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:15,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:15,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:59:15,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-12 14:59:15,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 14:59:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:15,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:15,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:15,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:15,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:59:15,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:15,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:59:15,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:15,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:59:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:59:15,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:59:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:15,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:15,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:15,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 14:59:15,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:15,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-12 14:59:15,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:15,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 14:59:15,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 329 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-12 14:59:16,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244651887] [2020-10-12 14:59:16,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:16,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:59:16,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487070424] [2020-10-12 14:59:16,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:16,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:16,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:16,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:16,735 INFO L87 Difference]: Start difference. First operand 14876 states and 18021 transitions. Second operand 7 states. [2020-10-12 14:59:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:26,616 INFO L93 Difference]: Finished difference Result 35991 states and 45229 transitions. [2020-10-12 14:59:26,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:59:26,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 980 [2020-10-12 14:59:26,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:26,694 INFO L225 Difference]: With dead ends: 35991 [2020-10-12 14:59:26,695 INFO L226 Difference]: Without dead ends: 21121 [2020-10-12 14:59:26,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 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 14:59:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21121 states. [2020-10-12 14:59:28,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21121 to 20901. [2020-10-12 14:59:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20901 states. [2020-10-12 14:59:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20901 states to 20901 states and 25755 transitions. [2020-10-12 14:59:28,080 INFO L78 Accepts]: Start accepts. Automaton has 20901 states and 25755 transitions. Word has length 980 [2020-10-12 14:59:28,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:28,082 INFO L479 AbstractCegarLoop]: Abstraction has 20901 states and 25755 transitions. [2020-10-12 14:59:28,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 20901 states and 25755 transitions. [2020-10-12 14:59:28,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2020-10-12 14:59:28,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:28,132 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:28,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:59:28,132 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:28,133 INFO L82 PathProgramCache]: Analyzing trace with hash -642602912, now seen corresponding path program 1 times [2020-10-12 14:59:28,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:28,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652022515] [2020-10-12 14:59:28,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:29,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:32,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:32,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1085 [2020-10-12 14:59:32,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4159 [2020-10-12 14:59:32,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 14:59:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:59:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:32,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:32,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:32,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:32,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:32,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:32,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:59:32,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:32,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:32,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:32,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:32,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:33,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:33,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:59:33,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:33,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-12 14:59:33,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:33,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:33,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:59:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-12 14:59:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:33,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:59:33,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:59:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:33,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:33,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:33,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:59:33,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:33,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:59:33,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:33,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:33,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:33,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:33,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:33,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:59:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:33,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:34,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:34,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:59:34,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:34,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-12 14:59:34,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 14:59:34,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:34,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:34,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:34,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:59:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:34,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:59:34,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:59:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:34,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:59:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:34,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:34,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:34,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:59:34,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:34,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:59:34,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:34,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:59:34,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:34,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-12 14:59:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:34,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:34,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:34,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:59:34,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:34,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:59:34,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:34,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:34,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 14:59:34,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:34,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:59:35,731 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 358 proven. 75 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2020-10-12 14:59:35,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652022515] [2020-10-12 14:59:35,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:35,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:59:35,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834885123] [2020-10-12 14:59:35,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:35,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:35,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:35,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:35,734 INFO L87 Difference]: Start difference. First operand 20901 states and 25755 transitions. Second operand 7 states. [2020-10-12 14:59:46,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:46,608 INFO L93 Difference]: Finished difference Result 52079 states and 65771 transitions. [2020-10-12 14:59:46,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:59:46,609 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1063 [2020-10-12 14:59:46,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:46,699 INFO L225 Difference]: With dead ends: 52079 [2020-10-12 14:59:46,700 INFO L226 Difference]: Without dead ends: 31184 [2020-10-12 14:59:46,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:59:46,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31184 states. [2020-10-12 14:59:47,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31184 to 31095. [2020-10-12 14:59:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31095 states. [2020-10-12 14:59:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31095 states to 31095 states and 37691 transitions. [2020-10-12 14:59:47,377 INFO L78 Accepts]: Start accepts. Automaton has 31095 states and 37691 transitions. Word has length 1063 [2020-10-12 14:59:47,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:47,380 INFO L479 AbstractCegarLoop]: Abstraction has 31095 states and 37691 transitions. [2020-10-12 14:59:47,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:47,380 INFO L276 IsEmpty]: Start isEmpty. Operand 31095 states and 37691 transitions. [2020-10-12 14:59:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1120 [2020-10-12 14:59:47,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:47,405 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:47,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:59:47,406 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:47,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:47,406 INFO L82 PathProgramCache]: Analyzing trace with hash 299357445, now seen corresponding path program 1 times [2020-10-12 14:59:47,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:47,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768557700] [2020-10-12 14:59:47,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:48,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:48,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:51,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:51,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1141 [2020-10-12 14:59:53,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:59:53,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-12 14:59:53,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:59:53,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 958 [2020-10-12 14:59:53,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 14:59:53,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:53,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:53,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:59:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:59:53,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:53,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 14:59:53,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:53,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:53,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:53,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:53,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:59:53,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:59:53,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:53,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:59:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:53,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:53,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:53,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:59:53,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:59:53,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:53,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:53,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:59:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:53,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:54,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:54,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 14:59:54,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:54,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-12 14:59:54,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:54,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:54,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:54,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:54,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:54,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:54,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:54,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:54,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 14:59:54,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:54,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:59:54,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:54,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 14:59:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:54,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:54,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:54,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:59:54,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:59:54,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:59:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:54,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 946 [2020-10-12 14:59:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:54,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:54,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:54,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:54,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 14:59:54,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:54,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-12 14:59:54,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:59:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-12 14:59:54,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 544 proven. 2 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-10-12 14:59:55,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768557700] [2020-10-12 14:59:55,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:55,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:59:55,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885452711] [2020-10-12 14:59:55,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:59:55,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:55,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:59:55,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:59:55,917 INFO L87 Difference]: Start difference. First operand 31095 states and 37691 transitions. Second operand 10 states. [2020-10-12 14:59:56,142 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-10-12 14:59:56,557 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-10-12 14:59:56,685 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-10-12 14:59:57,598 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-12 15:00:00,611 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-12 15:00:00,981 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-12 15:00:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:09,586 INFO L93 Difference]: Finished difference Result 62851 states and 76237 transitions. [2020-10-12 15:00:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 15:00:09,587 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1119 [2020-10-12 15:00:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:09,668 INFO L225 Difference]: With dead ends: 62851 [2020-10-12 15:00:09,668 INFO L226 Difference]: Without dead ends: 30933 [2020-10-12 15:00:09,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-12 15:00:09,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30933 states. [2020-10-12 15:00:10,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30933 to 30733. [2020-10-12 15:00:10,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30733 states. [2020-10-12 15:00:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30733 states to 30733 states and 34602 transitions. [2020-10-12 15:00:10,197 INFO L78 Accepts]: Start accepts. Automaton has 30733 states and 34602 transitions. Word has length 1119 [2020-10-12 15:00:10,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:10,198 INFO L479 AbstractCegarLoop]: Abstraction has 30733 states and 34602 transitions. [2020-10-12 15:00:10,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 15:00:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 30733 states and 34602 transitions. [2020-10-12 15:00:10,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2020-10-12 15:00:10,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:10,228 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:10,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:00:10,228 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:10,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:10,229 INFO L82 PathProgramCache]: Analyzing trace with hash -580685037, now seen corresponding path program 1 times [2020-10-12 15:00:10,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:10,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730317451] [2020-10-12 15:00:10,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:10,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:11,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:11,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1152 [2020-10-12 15:00:11,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 969 [2020-10-12 15:00:11,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-12 15:00:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 15:00:11,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:11,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:11,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:11,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:11,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:11,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:11,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:11,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:11,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:11,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:11,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:11,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:11,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:11,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:11,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:11,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:00:11,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:11,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:11,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:11,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:11,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:11,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:11,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:11,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:11,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:00:11,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:11,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:11,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:11,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:11,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:12,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:12,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:12,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:12,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:12,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:12,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:00:12,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:12,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:12,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:12,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:12,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:12,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:12,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:12,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:00:12,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:12,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:12,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:12,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:12,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:12,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:12,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:12,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:00:12,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-12 15:00:12,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 15:00:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:12,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:00:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:12,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:12,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:00:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 15:00:12,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 15:00:12,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 488 proven. 2 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-12 15:00:13,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730317451] [2020-10-12 15:00:13,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:13,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:00:13,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834640066] [2020-10-12 15:00:13,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:13,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:13,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:13,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:13,213 INFO L87 Difference]: Start difference. First operand 30733 states and 34602 transitions. Second operand 7 states. [2020-10-12 15:00:24,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:24,939 INFO L93 Difference]: Finished difference Result 66600 states and 74912 transitions. [2020-10-12 15:00:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 15:00:24,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1130 [2020-10-12 15:00:24,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:25,037 INFO L225 Difference]: With dead ends: 66600 [2020-10-12 15:00:25,038 INFO L226 Difference]: Without dead ends: 35873 [2020-10-12 15:00:25,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:00:25,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35873 states. [2020-10-12 15:00:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35873 to 33588. [2020-10-12 15:00:25,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33588 states. [2020-10-12 15:00:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33588 states to 33588 states and 37759 transitions. [2020-10-12 15:00:25,566 INFO L78 Accepts]: Start accepts. Automaton has 33588 states and 37759 transitions. Word has length 1130 [2020-10-12 15:00:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:25,567 INFO L479 AbstractCegarLoop]: Abstraction has 33588 states and 37759 transitions. [2020-10-12 15:00:25,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 33588 states and 37759 transitions. [2020-10-12 15:00:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1145 [2020-10-12 15:00:25,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:25,586 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:25,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:00:25,586 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:25,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:25,587 INFO L82 PathProgramCache]: Analyzing trace with hash 693141271, now seen corresponding path program 1 times [2020-10-12 15:00:25,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:25,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607034963] [2020-10-12 15:00:25,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:26,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:26,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:26,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1166 [2020-10-12 15:00:26,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:26,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1070 [2020-10-12 15:00:26,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-12 15:00:26,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 15:00:26,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:27,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:27,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:27,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:27,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:27,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:27,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 15:00:27,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:27,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:27,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:27,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:27,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:27,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:00:27,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:27,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:27,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:27,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:00:27,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:27,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:27,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:27,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:27,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:27,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:00:27,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:27,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:00:27,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:27,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:27,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:00:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:27,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:28,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:28,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:00:28,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 15:00:28,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 201 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-12 15:00:28,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607034963] [2020-10-12 15:00:28,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:28,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:00:28,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241406394] [2020-10-12 15:00:28,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:00:28,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:28,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:00:28,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:00:28,465 INFO L87 Difference]: Start difference. First operand 33588 states and 37759 transitions. Second operand 5 states. [2020-10-12 15:00:37,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:37,658 INFO L93 Difference]: Finished difference Result 67207 states and 75648 transitions. [2020-10-12 15:00:37,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:00:37,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1144 [2020-10-12 15:00:37,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:37,762 INFO L225 Difference]: With dead ends: 67207 [2020-10-12 15:00:37,762 INFO L226 Difference]: Without dead ends: 33625 [2020-10-12 15:00:37,812 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 15:00:37,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33625 states. [2020-10-12 15:00:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33625 to 32882. [2020-10-12 15:00:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32882 states. [2020-10-12 15:00:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32882 states to 32882 states and 36279 transitions. [2020-10-12 15:00:38,343 INFO L78 Accepts]: Start accepts. Automaton has 32882 states and 36279 transitions. Word has length 1144 [2020-10-12 15:00:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:38,344 INFO L479 AbstractCegarLoop]: Abstraction has 32882 states and 36279 transitions. [2020-10-12 15:00:38,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:00:38,344 INFO L276 IsEmpty]: Start isEmpty. Operand 32882 states and 36279 transitions. [2020-10-12 15:00:38,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1228 [2020-10-12 15:00:38,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:38,380 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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 15:00:38,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:00:38,380 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:38,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1975904419, now seen corresponding path program 1 times [2020-10-12 15:00:38,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:38,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721551712] [2020-10-12 15:00:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:38,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:38,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:43,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1251 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1075 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 15:00:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:43,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:43,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:43,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:43,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:43,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:00:43,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:43,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:43,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:43,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:43,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:43,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:43,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:43,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 15:00:43,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:43,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:43,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:43,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:43,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:44,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:00:44,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:44,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:00:44,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:44,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:44,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 15:00:44,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:44,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:00:44,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:44,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:44,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:44,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:00:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:00:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:00:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 15:00:44,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:00:44,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:00:44,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:44,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2020-10-12 15:00:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:44,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 15:00:44,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 15:00:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:00:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 15:00:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 628 proven. 52 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2020-10-12 15:00:46,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721551712] [2020-10-12 15:00:46,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:46,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:00:46,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798604983] [2020-10-12 15:00:46,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:00:46,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:46,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:00:46,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:00:46,167 INFO L87 Difference]: Start difference. First operand 32882 states and 36279 transitions. Second operand 8 states. [2020-10-12 15:01:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:02,809 INFO L93 Difference]: Finished difference Result 82559 states and 92971 transitions. [2020-10-12 15:01:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 15:01:02,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1227 [2020-10-12 15:01:02,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:02,972 INFO L225 Difference]: With dead ends: 82559 [2020-10-12 15:01:02,973 INFO L226 Difference]: Without dead ends: 49540 [2020-10-12 15:01:03,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:01:03,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49540 states. [2020-10-12 15:01:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49540 to 46602. [2020-10-12 15:01:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46602 states. [2020-10-12 15:01:03,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46602 states to 46602 states and 52667 transitions. [2020-10-12 15:01:03,831 INFO L78 Accepts]: Start accepts. Automaton has 46602 states and 52667 transitions. Word has length 1227 [2020-10-12 15:01:03,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:03,832 INFO L479 AbstractCegarLoop]: Abstraction has 46602 states and 52667 transitions. [2020-10-12 15:01:03,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:01:03,832 INFO L276 IsEmpty]: Start isEmpty. Operand 46602 states and 52667 transitions. [2020-10-12 15:01:03,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2020-10-12 15:01:03,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:03,852 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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 15:01:03,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:01:03,853 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:03,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:03,854 INFO L82 PathProgramCache]: Analyzing trace with hash 105714927, now seen corresponding path program 1 times [2020-10-12 15:01:03,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:03,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100459089] [2020-10-12 15:01:03,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:01:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:04,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1265 [2020-10-12 15:01:05,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 956 [2020-10-12 15:01:05,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-12 15:01:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 15:01:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:01:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:01:05,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:01:05,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:01:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:05,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:01:05,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:01:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:05,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:01:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:01:05,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:01:05,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:05,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:01:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:01:05,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:01:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:01:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:01:05,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:01:05,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:01:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:01:05,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:01:05,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:01:05,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:01:05,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:01:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 15:01:05,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-12 15:01:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:01:05,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:01:05,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:01:05,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:01:05,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:01:05,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 15:01:05,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:01:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:01:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:01:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 15:01:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 636 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-12 15:01:06,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100459089] [2020-10-12 15:01:06,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:06,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:01:06,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408233046] [2020-10-12 15:01:06,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:01:06,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:06,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:01:06,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:01:06,870 INFO L87 Difference]: Start difference. First operand 46602 states and 52667 transitions. Second operand 7 states.