/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/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:46:55,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:46:55,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:46:55,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:46:55,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:46:55,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:46:55,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:46:55,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:46:55,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:46:55,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:46:55,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:46:55,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:46:55,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:46:55,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:46:55,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:46:55,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:46:55,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:46:55,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:46:55,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:46:55,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:46:55,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:46:55,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:46:55,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:46:55,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:46:55,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:46:55,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:46:55,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:46:55,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:46:55,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:46:55,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:46:55,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:46:55,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:46:55,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:46:55,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:46:55,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:46:55,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:46:55,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:46:55,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:46:55,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:46:55,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:46:55,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:46:55,667 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 18:46:55,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:46:55,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:46:55,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:46:55,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:46:55,696 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:46:55,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:46:55,696 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:46:55,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:46:55,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:46:55,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:46:55,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:46:55,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:46:55,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:46:55,698 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:46:55,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:46:55,698 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:46:55,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:46:55,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:46:55,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:46:55,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:46:55,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:46:55,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:46:55,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:46:55,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:46:55,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:46:55,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:46:55,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:46:55,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:46:55,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:46:55,701 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 18:46:55,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:46:56,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:46:56,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:46:56,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:46:56,008 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:46:56,009 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-12 18:46:56,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1852023e5/bd0290ad9a484ed4b8f3d73da795b539/FLAG98aeb5b5f [2020-10-12 18:46:56,540 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:46:56,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-12 18:46:56,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1852023e5/bd0290ad9a484ed4b8f3d73da795b539/FLAG98aeb5b5f [2020-10-12 18:46:56,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1852023e5/bd0290ad9a484ed4b8f3d73da795b539 [2020-10-12 18:46:56,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:46:56,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:46:56,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:46:56,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:46:56,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:46:56,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:46:56" (1/1) ... [2020-10-12 18:46:56,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357f67cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:56, skipping insertion in model container [2020-10-12 18:46:56,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:46:56" (1/1) ... [2020-10-12 18:46:56,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:46:56,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:46:57,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:46:57,262 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:46:57,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:46:57,447 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:46:57,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57 WrapperNode [2020-10-12 18:46:57,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:46:57,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:46:57,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:46:57,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:46:57,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (1/1) ... [2020-10-12 18:46:57,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (1/1) ... [2020-10-12 18:46:57,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (1/1) ... [2020-10-12 18:46:57,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (1/1) ... [2020-10-12 18:46:57,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (1/1) ... [2020-10-12 18:46:57,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (1/1) ... [2020-10-12 18:46:57,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (1/1) ... [2020-10-12 18:46:57,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:46:57,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:46:57,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:46:57,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:46:57,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (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 18:46:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:46:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:46:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:46:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:46:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:46:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:46:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:46:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:46:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-12 18:46:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-12 18:46:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:46:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:46:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:46:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:46:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:46:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:46:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:46:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:46:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:46:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:46:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:46:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:46:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:46:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:46:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:46:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:46:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:46:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:46:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 18:46:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-12 18:46:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:46:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:46:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:46:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:46:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:46:58,301 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:46:58,301 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:46:58,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:46:58 BoogieIcfgContainer [2020-10-12 18:46:58,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:46:58,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:46:58,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:46:58,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:46:58,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:46:56" (1/3) ... [2020-10-12 18:46:58,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556eeb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:46:58, skipping insertion in model container [2020-10-12 18:46:58,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:57" (2/3) ... [2020-10-12 18:46:58,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556eeb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:46:58, skipping insertion in model container [2020-10-12 18:46:58,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:46:58" (3/3) ... [2020-10-12 18:46:58,315 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-12 18:46:58,326 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:46:58,334 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:46:58,348 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:46:58,375 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:46:58,375 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:46:58,375 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:46:58,375 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:46:58,376 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:46:58,376 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:46:58,376 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:46:58,376 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:46:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-10-12 18:46:58,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:46:58,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:58,415 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, 1, 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 18:46:58,415 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:58,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1213243566, now seen corresponding path program 1 times [2020-10-12 18:46:58,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:58,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284463332] [2020-10-12 18:46:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:58,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:46:59,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-12 18:46:59,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:46:59,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:46:59,478 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:46:59,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:59,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:46:59,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:59,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:59,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:46:59,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:59,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:46:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:59,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:59,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:46:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:46:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:59,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:46:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:59,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:46:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:59,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:46:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:59,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:59,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:46:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:46:59,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:59,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:46:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:59,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:59,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:46:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:59,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:46:59,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:59,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:46:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:59,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:59,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:59,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:46:59,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:59,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:59,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:46:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:59,870 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 18:46:59,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284463332] [2020-10-12 18:46:59,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:46:59,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:46:59,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180247792] [2020-10-12 18:46:59,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:46:59,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:59,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:46:59,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:46:59,896 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 10 states. [2020-10-12 18:47:01,314 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 18:47:01,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:01,637 INFO L93 Difference]: Finished difference Result 275 states and 414 transitions. [2020-10-12 18:47:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:47:01,639 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-12 18:47:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:01,654 INFO L225 Difference]: With dead ends: 275 [2020-10-12 18:47:01,654 INFO L226 Difference]: Without dead ends: 168 [2020-10-12 18:47:01,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:47:01,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-12 18:47:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-10-12 18:47:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-12 18:47:01,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 258 transitions. [2020-10-12 18:47:01,737 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 258 transitions. Word has length 81 [2020-10-12 18:47:01,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:01,737 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 258 transitions. [2020-10-12 18:47:01,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:47:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 258 transitions. [2020-10-12 18:47:01,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:47:01,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:01,742 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, 1, 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 18:47:01,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:47:01,742 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:01,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:01,743 INFO L82 PathProgramCache]: Analyzing trace with hash 481276140, now seen corresponding path program 1 times [2020-10-12 18:47:01,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:01,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426753686] [2020-10-12 18:47:01,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:02,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:47:02,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:02,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-10-12 18:47:02,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:47:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:47:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:47:02,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:02,880 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:47:02,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:47:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:02,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:02,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:02,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:47:02,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:47:02,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:02,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 18:47:02,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:47:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:02,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:02,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:02,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:47:02,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:02,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:47:02,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:02,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:02,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:47:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:02,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:02,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:47:02,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:02,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:02,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:47:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:02,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:47:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:03,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:47:03,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:47:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:03,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:03,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:47:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:03,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:03,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:47:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:03,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:03,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:47:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:03,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:03,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:47:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:03,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:03,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:03,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:47:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:03,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:03,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:47:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:03,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:03,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:03,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:47:03,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:03,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:47:03,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:47:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:03,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:03,264 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 18:47:03,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426753686] [2020-10-12 18:47:03,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:03,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:47:03,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752314317] [2020-10-12 18:47:03,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:47:03,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:03,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:47:03,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:47:03,268 INFO L87 Difference]: Start difference. First operand 167 states and 258 transitions. Second operand 16 states. [2020-10-12 18:47:03,544 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:47:03,729 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:47:04,027 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:47:04,229 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:06,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:06,469 INFO L93 Difference]: Finished difference Result 273 states and 406 transitions. [2020-10-12 18:47:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:47:06,470 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2020-10-12 18:47:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:06,474 INFO L225 Difference]: With dead ends: 273 [2020-10-12 18:47:06,474 INFO L226 Difference]: Without dead ends: 168 [2020-10-12 18:47:06,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2020-10-12 18:47:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-12 18:47:06,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-10-12 18:47:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-12 18:47:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 208 transitions. [2020-10-12 18:47:06,520 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 208 transitions. Word has length 81 [2020-10-12 18:47:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:06,521 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 208 transitions. [2020-10-12 18:47:06,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:47:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 208 transitions. [2020-10-12 18:47:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 18:47:06,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:06,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:47:06,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:47:06,530 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:06,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:06,530 INFO L82 PathProgramCache]: Analyzing trace with hash -150990176, now seen corresponding path program 1 times [2020-10-12 18:47:06,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:06,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978187424] [2020-10-12 18:47:06,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:06,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:06,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:06,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:06,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:11,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:11,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 18:47:11,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:47:11,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 18:47:11,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:11,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:47:11,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:47:11,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 18:47:11,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:11,866 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:47:11,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:47:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:11,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:11,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:11,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:47:11,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:47:11,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:11,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:47:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:11,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:11,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:11,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:47:11,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:11,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 18:47:11,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:47:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:47:11,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:12,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:47:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:47:12,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:12,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:12,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:12,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:47:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:12,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:47:12,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:12,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:12,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:47:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:12,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:47:12,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:12,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:47:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:12,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:47:12,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:12,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:12,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:12,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:12,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:47:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:12,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:47:12,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:12,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:47:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:12,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:47:12,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:12,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:47:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:12,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:47:12,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:12,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:12,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:12,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:12,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:47:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:12,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:47:12,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:12,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:47:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:12,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:12,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:12,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:47:12,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:47:12,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:47:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:47:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:12,861 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 18:47:12,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978187424] [2020-10-12 18:47:12,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:12,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 18:47:12,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585711851] [2020-10-12 18:47:12,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:47:12,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:12,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:47:12,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:47:12,865 INFO L87 Difference]: Start difference. First operand 167 states and 208 transitions. Second operand 25 states. [2020-10-12 18:47:13,359 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:47:13,653 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:47:13,935 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:47:14,183 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:47:14,375 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:47:14,570 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:14,773 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:47:15,098 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 18:47:16,813 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:47:17,275 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 18:47:19,425 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:47:23,545 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-12 18:47:23,764 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:47:23,974 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:47:24,192 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:47:24,388 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:24,579 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:47:24,947 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:47:26,760 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 18:47:28,919 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:47:31,392 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:47:31,922 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:47:32,338 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 18:47:33,020 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:47:33,751 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:47:33,888 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:47:35,318 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 18:47:37,850 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:47:37,981 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:47:38,390 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:47:39,143 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:47:39,598 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:47:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:46,253 INFO L93 Difference]: Finished difference Result 1933 states and 2921 transitions. [2020-10-12 18:47:46,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2020-10-12 18:47:46,259 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 130 [2020-10-12 18:47:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:46,282 INFO L225 Difference]: With dead ends: 1933 [2020-10-12 18:47:46,282 INFO L226 Difference]: Without dead ends: 1834 [2020-10-12 18:47:46,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15226 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=6463, Invalid=32543, Unknown=0, NotChecked=0, Total=39006 [2020-10-12 18:47:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2020-10-12 18:47:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1599. [2020-10-12 18:47:46,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1599 states. [2020-10-12 18:47:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2270 transitions. [2020-10-12 18:47:46,521 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2270 transitions. Word has length 130 [2020-10-12 18:47:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:46,521 INFO L479 AbstractCegarLoop]: Abstraction has 1599 states and 2270 transitions. [2020-10-12 18:47:46,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:47:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2270 transitions. [2020-10-12 18:47:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:47:46,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:46,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:47:46,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:47:46,526 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:46,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:46,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1211210256, now seen corresponding path program 1 times [2020-10-12 18:47:46,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:46,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45213266] [2020-10-12 18:47:46,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:46,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:46,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:46,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:46,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:47,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:47,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:51,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:51,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:47:51,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:47:51,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:47:51,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:51,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:51,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-12 18:47:51,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 18:47:51,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:51,769 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:47:51,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:47:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:51,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:51,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:51,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:47:51,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:51,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:47:51,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:51,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:51,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:47:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:51,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:51,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:51,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:47:51,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:47:51,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:51,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:47:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:51,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:51,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:51,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:47:51,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:51,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:47:51,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:51,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:47:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:51,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:51,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:51,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:51,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:47:51,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:47:51,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:51,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:47:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:51,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:51,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:51,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:51,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:51,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:47:51,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:51,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:51,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:51,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:51,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:47:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:51,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:51,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:51,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:51,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:51,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:47:51,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:51,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:47:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:51,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:52,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:52,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:47:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:52,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:52,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:47:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:52,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:47:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:52,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:52,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:52,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:52,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:52,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:52,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:47:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:52,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:52,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:52,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:47:52,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:47:52,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:47:52,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:47:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:47:52,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:52,168 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 18:47:52,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45213266] [2020-10-12 18:47:52,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:52,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:47:52,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56831816] [2020-10-12 18:47:52,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:47:52,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:52,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:47:52,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:47:52,170 INFO L87 Difference]: Start difference. First operand 1599 states and 2270 transitions. Second operand 14 states. [2020-10-12 18:47:52,398 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:47:53,854 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 18:47:54,125 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 18:47:54,794 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:55,854 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:47:56,123 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:47:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:59,814 INFO L93 Difference]: Finished difference Result 7389 states and 10652 transitions. [2020-10-12 18:47:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:47:59,817 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2020-10-12 18:47:59,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:59,850 INFO L225 Difference]: With dead ends: 7389 [2020-10-12 18:47:59,850 INFO L226 Difference]: Without dead ends: 5858 [2020-10-12 18:47:59,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2020-10-12 18:47:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5858 states. [2020-10-12 18:48:00,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5858 to 5762. [2020-10-12 18:48:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5762 states. [2020-10-12 18:48:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 8171 transitions. [2020-10-12 18:48:00,400 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 8171 transitions. Word has length 132 [2020-10-12 18:48:00,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:00,401 INFO L479 AbstractCegarLoop]: Abstraction has 5762 states and 8171 transitions. [2020-10-12 18:48:00,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:48:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 8171 transitions. [2020-10-12 18:48:00,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:48:00,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:00,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:48:00,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:48:00,407 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:00,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:00,407 INFO L82 PathProgramCache]: Analyzing trace with hash -294925694, now seen corresponding path program 1 times [2020-10-12 18:48:00,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:00,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595919224] [2020-10-12 18:48:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:00,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:00,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:02,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:48:05,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:48:05,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 18:48:05,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 18:48:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:48:05,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,684 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:48:05,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:05,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:05,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:48:05,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:48:05,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 18:48:05,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:05,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:05,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:05,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:05,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:05,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:05,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:05,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:05,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:05,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:05,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:48:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:05,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:05,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:48:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:05,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:05,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:05,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:05,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:48:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:05,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:05,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:05,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:48:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:05,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:05,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:05,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:05,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:05,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:48:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:05,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:05,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:05,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:05,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:05,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:05,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:05,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:06,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:48:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:06,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:06,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:06,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:06,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:48:06,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:06,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:06,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:48:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:06,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:06,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:06,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:48:06,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:06,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:48:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:06,058 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 18:48:06,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595919224] [2020-10-12 18:48:06,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:06,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:48:06,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127901883] [2020-10-12 18:48:06,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:48:06,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:06,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:48:06,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:48:06,062 INFO L87 Difference]: Start difference. First operand 5762 states and 8171 transitions. Second operand 13 states. [2020-10-12 18:48:06,356 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:48:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:10,034 INFO L93 Difference]: Finished difference Result 16790 states and 23917 transitions. [2020-10-12 18:48:10,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:48:10,035 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2020-10-12 18:48:10,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:10,098 INFO L225 Difference]: With dead ends: 16790 [2020-10-12 18:48:10,098 INFO L226 Difference]: Without dead ends: 11096 [2020-10-12 18:48:10,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:48:10,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11096 states. [2020-10-12 18:48:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11096 to 11034. [2020-10-12 18:48:11,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11034 states. [2020-10-12 18:48:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11034 states to 11034 states and 15573 transitions. [2020-10-12 18:48:11,063 INFO L78 Accepts]: Start accepts. Automaton has 11034 states and 15573 transitions. Word has length 132 [2020-10-12 18:48:11,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:11,065 INFO L479 AbstractCegarLoop]: Abstraction has 11034 states and 15573 transitions. [2020-10-12 18:48:11,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:48:11,065 INFO L276 IsEmpty]: Start isEmpty. Operand 11034 states and 15573 transitions. [2020-10-12 18:48:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:48:11,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:11,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:48:11,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:48:11,070 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:11,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1481580468, now seen corresponding path program 1 times [2020-10-12 18:48:11,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:11,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508473841] [2020-10-12 18:48:11,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:11,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:11,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:11,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:11,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:48:16,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:48:16,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:48:16,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 18:48:16,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-12 18:48:16,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:16,307 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:48:16,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:16,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:16,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:16,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:16,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:16,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:48:16,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:48:16,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:48:16,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:16,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:16,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:16,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:16,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:16,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:16,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:48:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:16,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:16,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:16,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:16,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:48:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:16,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:16,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:16,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:16,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:48:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:16,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:16,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:16,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:16,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:48:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:16,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:16,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:16,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:16,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:48:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:16,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:16,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:16,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:16,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:48:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:16,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:48:16,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:16,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:16,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:16,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:16,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:48:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:16,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:16,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:16,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:48:16,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:16,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:16,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:48:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:16,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:16,756 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 18:48:16,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508473841] [2020-10-12 18:48:16,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:16,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:48:16,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527830304] [2020-10-12 18:48:16,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:48:16,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:16,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:48:16,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:48:16,758 INFO L87 Difference]: Start difference. First operand 11034 states and 15573 transitions. Second operand 13 states. [2020-10-12 18:48:16,983 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:48:21,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:21,262 INFO L93 Difference]: Finished difference Result 32198 states and 45631 transitions. [2020-10-12 18:48:21,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:48:21,262 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2020-10-12 18:48:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:21,381 INFO L225 Difference]: With dead ends: 32198 [2020-10-12 18:48:21,381 INFO L226 Difference]: Without dead ends: 21232 [2020-10-12 18:48:21,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=217, Invalid=595, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:48:21,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21232 states. [2020-10-12 18:48:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21232 to 21110. [2020-10-12 18:48:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21110 states. [2020-10-12 18:48:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21110 states to 21110 states and 29645 transitions. [2020-10-12 18:48:23,491 INFO L78 Accepts]: Start accepts. Automaton has 21110 states and 29645 transitions. Word has length 132 [2020-10-12 18:48:23,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:23,492 INFO L479 AbstractCegarLoop]: Abstraction has 21110 states and 29645 transitions. [2020-10-12 18:48:23,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:48:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 21110 states and 29645 transitions. [2020-10-12 18:48:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:48:23,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:23,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:48:23,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:48:23,495 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:23,495 INFO L82 PathProgramCache]: Analyzing trace with hash -285835198, now seen corresponding path program 1 times [2020-10-12 18:48:23,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:23,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360243783] [2020-10-12 18:48:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:23,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:23,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:25,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:28,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:28,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:48:28,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:48:28,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:48:28,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:48:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:48:28,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 18:48:28,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:28,797 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:48:28,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:28,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:28,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:28,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:28,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:28,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:28,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:28,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:48:28,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 18:48:28,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:48:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:48:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:29,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:29,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:29,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:29,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:29,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:29,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:48:29,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:29,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:48:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:29,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:48:29,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:48:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:29,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:29,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:48:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:29,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:29,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:48:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:29,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:29,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:29,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:48:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:29,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:29,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:29,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:48:29,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:48:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:29,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:48:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:48:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:29,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:29,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:29,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:48:29,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:29,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:48:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:48:29,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:29,578 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 18:48:29,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360243783] [2020-10-12 18:48:29,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:29,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 18:48:29,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176714427] [2020-10-12 18:48:29,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:48:29,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:29,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:48:29,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:48:29,583 INFO L87 Difference]: Start difference. First operand 21110 states and 29645 transitions. Second operand 25 states. [2020-10-12 18:48:29,825 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:48:30,017 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:48:30,200 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:48:30,397 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:48:30,595 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:48:30,814 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:48:31,049 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:48:31,360 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:48:31,727 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:31,921 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:48:32,208 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:32,863 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:48:33,118 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:33,569 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:48:33,866 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:34,010 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:34,750 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:34,986 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:48:35,287 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:35,565 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:36,609 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:48:36,944 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:37,173 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:37,299 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:38,784 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:39,893 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:41,071 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 18:48:41,499 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:41,953 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:48:43,142 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:44,880 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:45,035 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:48:45,251 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-12 18:48:45,831 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:46,858 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:48,757 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:48,915 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:48:49,422 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:50,320 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:48:51,668 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:52,671 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:53,704 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:54,418 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:55,158 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:55,670 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:56,203 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:57,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:57,047 INFO L93 Difference]: Finished difference Result 55554 states and 81579 transitions. [2020-10-12 18:48:57,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2020-10-12 18:48:57,053 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 132 [2020-10-12 18:48:57,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:57,197 INFO L225 Difference]: With dead ends: 55554 [2020-10-12 18:48:57,197 INFO L226 Difference]: Without dead ends: 34512 [2020-10-12 18:48:57,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13494 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=5454, Invalid=28218, Unknown=0, NotChecked=0, Total=33672 [2020-10-12 18:48:57,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34512 states. [2020-10-12 18:48:59,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34512 to 29342. [2020-10-12 18:48:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29342 states. [2020-10-12 18:48:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29342 states to 29342 states and 41613 transitions. [2020-10-12 18:48:59,382 INFO L78 Accepts]: Start accepts. Automaton has 29342 states and 41613 transitions. Word has length 132 [2020-10-12 18:48:59,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:59,382 INFO L479 AbstractCegarLoop]: Abstraction has 29342 states and 41613 transitions. [2020-10-12 18:48:59,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:48:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 29342 states and 41613 transitions. [2020-10-12 18:48:59,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:48:59,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:59,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:48:59,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:48:59,385 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:59,386 INFO L82 PathProgramCache]: Analyzing trace with hash 320324736, now seen corresponding path program 1 times [2020-10-12 18:48:59,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:59,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56467403] [2020-10-12 18:48:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:59,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:49:04,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:49:04,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:49:04,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:49:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:49:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 18:49:04,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:04,639 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:49:04,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:49:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:49:04,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:49:04,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:49:04,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:49:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:49:04,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:49:04,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:49:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:49:04,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:49:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:49:04,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:49:04,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:49:04,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:49:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:04,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:49:04,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:04,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:49:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:04,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:49:04,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:49:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:04,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:49:04,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:49:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:04,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:49:04,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:04,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:49:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:04,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:04,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:04,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:04,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:04,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:49:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:04,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:49:04,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:49:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:04,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:04,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:49:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:04,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:04,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:04,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:49:04,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:49:04,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:49:04,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:05,010 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 18:49:05,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56467403] [2020-10-12 18:49:05,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:49:05,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:49:05,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262806398] [2020-10-12 18:49:05,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:49:05,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:49:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:49:05,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:49:05,012 INFO L87 Difference]: Start difference. First operand 29342 states and 41613 transitions. Second operand 17 states. [2020-10-12 18:49:05,420 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:49:05,622 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:49:06,343 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:49:06,544 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-12 18:49:06,828 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:07,048 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:07,337 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:07,577 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:07,858 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-10-12 18:49:08,077 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:49:08,483 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-10-12 18:49:08,740 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:09,111 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-12 18:49:09,357 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:09,619 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:09,868 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:10,152 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:10,460 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:49:10,754 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:49:13,217 INFO L93 Difference]: Finished difference Result 58567 states and 82632 transitions. [2020-10-12 18:49:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:49:13,218 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-12 18:49:13,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:49:13,323 INFO L225 Difference]: With dead ends: 58567 [2020-10-12 18:49:13,323 INFO L226 Difference]: Without dead ends: 33557 [2020-10-12 18:49:13,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:49:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33557 states. [2020-10-12 18:49:15,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33557 to 29536. [2020-10-12 18:49:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29536 states. [2020-10-12 18:49:15,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29536 states to 29536 states and 41868 transitions. [2020-10-12 18:49:15,999 INFO L78 Accepts]: Start accepts. Automaton has 29536 states and 41868 transitions. Word has length 132 [2020-10-12 18:49:16,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:49:16,000 INFO L479 AbstractCegarLoop]: Abstraction has 29536 states and 41868 transitions. [2020-10-12 18:49:16,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:49:16,000 INFO L276 IsEmpty]: Start isEmpty. Operand 29536 states and 41868 transitions. [2020-10-12 18:49:16,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:49:16,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:49:16,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:16,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:49:16,004 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:49:16,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:49:16,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1962841748, now seen corresponding path program 1 times [2020-10-12 18:49:16,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:49:16,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659800573] [2020-10-12 18:49:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:49:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:16,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:16,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:16,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:16,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:19,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:49:21,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:49:21,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:49:21,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 18:49:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:49:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 18:49:21,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,251 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:49:21,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:49:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:21,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:49:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:49:21,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:49:21,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:49:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:49:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:49:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:49:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:49:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:21,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:49:21,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:49:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:21,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:49:21,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:49:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:21,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:49:21,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:49:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:21,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:49:21,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:21,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:49:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:49:21,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:49:21,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:49:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:49:21,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:49:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:21,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:49:21,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:49:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:21,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:49:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:21,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:21,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:21,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:49:21,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:21,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:21,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:21,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:49:21,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:49:21,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:21,809 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 18:49:21,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659800573] [2020-10-12 18:49:21,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:49:21,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 18:49:21,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228258917] [2020-10-12 18:49:21,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:49:21,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:49:21,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:49:21,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:49:21,811 INFO L87 Difference]: Start difference. First operand 29536 states and 41868 transitions. Second operand 25 states. [2020-10-12 18:49:22,057 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:49:22,263 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:49:22,462 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:49:22,691 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:49:23,018 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:49:23,344 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:49:23,720 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:49:24,177 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:49:24,559 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-12 18:49:24,826 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:49:25,104 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:49:25,344 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:25,506 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:26,120 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:49:26,822 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:49:27,394 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:28,329 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:49:28,925 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:49:29,184 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:49:31,688 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:49:31,896 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:49:34,330 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:49:34,922 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 18:49:38,835 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:49:39,049 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-12 18:49:39,273 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:49:40,784 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:49:40,932 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:49:41,394 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 18:49:42,205 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:42,337 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:49:42,772 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:49:42,994 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:49:43,258 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 18:49:43,751 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:44,090 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:44,765 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:49:45,641 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:45,773 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:46,092 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:46,250 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:49:46,551 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:49:47,094 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:48,213 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:49,557 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:49:49,695 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:50,125 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-10-12 18:49:50,393 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:53,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:49:53,987 INFO L93 Difference]: Finished difference Result 65125 states and 98409 transitions. [2020-10-12 18:49:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2020-10-12 18:49:53,988 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 132 [2020-10-12 18:49:53,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:49:54,158 INFO L225 Difference]: With dead ends: 65125 [2020-10-12 18:49:54,158 INFO L226 Difference]: Without dead ends: 44201 [2020-10-12 18:49:54,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13386 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=5769, Invalid=27903, Unknown=0, NotChecked=0, Total=33672 [2020-10-12 18:49:54,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44201 states. [2020-10-12 18:49:57,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44201 to 36408. [2020-10-12 18:49:57,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36408 states. [2020-10-12 18:49:57,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36408 states to 36408 states and 51612 transitions. [2020-10-12 18:49:57,159 INFO L78 Accepts]: Start accepts. Automaton has 36408 states and 51612 transitions. Word has length 132 [2020-10-12 18:49:57,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:49:57,160 INFO L479 AbstractCegarLoop]: Abstraction has 36408 states and 51612 transitions. [2020-10-12 18:49:57,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:49:57,160 INFO L276 IsEmpty]: Start isEmpty. Operand 36408 states and 51612 transitions. [2020-10-12 18:49:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:49:57,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:49:57,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:57,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:49:57,162 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:49:57,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:49:57,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2139684140, now seen corresponding path program 1 times [2020-10-12 18:49:57,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:49:57,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720395309] [2020-10-12 18:49:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:49:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:57,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:50:02,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:50:02,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:50:02,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 18:50:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:50:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 18:50:02,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,407 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:50:02,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:50:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:50:02,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:50:02,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:50:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:50:02,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:50:02,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:50:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:50:02,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:50:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:50:02,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:02,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:02,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:02,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:50:02,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:50:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:50:02,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:02,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:50:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:50:02,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:02,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:02,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:02,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:50:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:50:02,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:02,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:50:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:50:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:50:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:50:02,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:50:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:50:02,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:02,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:50:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:50:02,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:02,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:50:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:02,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:03,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:50:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:03,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:03,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:50:03,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:03,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:03,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:50:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:50:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:03,077 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 18:50:03,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720395309] [2020-10-12 18:50:03,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:50:03,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-12 18:50:03,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929530354] [2020-10-12 18:50:03,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-12 18:50:03,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:50:03,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-12 18:50:03,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2020-10-12 18:50:03,079 INFO L87 Difference]: Start difference. First operand 36408 states and 51612 transitions. Second operand 26 states. [2020-10-12 18:50:03,554 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 169 [2020-10-12 18:50:03,769 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:50:03,976 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:50:04,189 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:50:04,406 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:50:04,627 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:50:04,853 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:50:05,247 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:05,698 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:50:05,888 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:50:06,259 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:50:06,820 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:50:07,254 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:50:07,928 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:50:09,142 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:50:09,986 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:50:10,486 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:50:10,679 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:50:11,649 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:50:12,446 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:50:13,375 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:50:13,894 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:50:15,008 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:50:15,533 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:50:16,676 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:50:19,929 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:50:22,078 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:50:22,300 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-12 18:50:22,517 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 170