/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_floodmax.4.1.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:35:45,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:35:45,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:35:45,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:35:45,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:35:45,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:35:45,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:35:45,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:35:45,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:35:45,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:35:45,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:35:45,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:35:45,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:35:45,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:35:45,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:35:45,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:35:45,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:35:45,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:35:45,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:35:45,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:35:45,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:35:45,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:35:45,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:35:45,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:35:45,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:35:45,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:35:45,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:35:45,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:35:45,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:35:45,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:35:45,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:35:45,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:35:45,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:35:45,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:35:45,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:35:45,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:35:45,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:35:45,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:35:45,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:35:45,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:35:45,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:35:45,834 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 18:35:45,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:35:45,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:35:45,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:35:45,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:35:45,876 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:35:45,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:35:45,877 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:35:45,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:35:45,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:35:45,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:35:45,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:35:45,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:35:45,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:35:45,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:35:45,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:35:45,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:35:45,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:35:45,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:35:45,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:35:45,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:35:45,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:35:45,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:35:45,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:35:45,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:35:45,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:35:45,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:35:45,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:35:45,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:35:45,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:35:45,882 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 18:35:46,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:35:46,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:35:46,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:35:46,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:35:46,201 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:35:46,202 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-12 18:35:46,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4553fe9a7/da9f379b80644fbca48609a72a534ea5/FLAGc197a558f [2020-10-12 18:35:46,883 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:35:46,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-12 18:35:46,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4553fe9a7/da9f379b80644fbca48609a72a534ea5/FLAGc197a558f [2020-10-12 18:35:47,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4553fe9a7/da9f379b80644fbca48609a72a534ea5 [2020-10-12 18:35:47,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:35:47,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:35:47,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:35:47,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:35:47,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:35:47,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac45c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47, skipping insertion in model container [2020-10-12 18:35:47,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:35:47,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:35:47,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:35:47,690 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:35:47,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:35:47,829 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:35:47,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47 WrapperNode [2020-10-12 18:35:47,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:35:47,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:35:47,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:35:47,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:35:47,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (1/1) ... [2020-10-12 18:35:47,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:35:47,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:35:47,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:35:47,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:35:47,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (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 18:35:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:35:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:35:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:35:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:35:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:35:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:35:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:35:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:35:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:35:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:35:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:35:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:35:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:35:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:35:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:35:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:35:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:35:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:35:49,476 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:35:49,477 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:35:49,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:35:49 BoogieIcfgContainer [2020-10-12 18:35:49,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:35:49,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:35:49,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:35:49,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:35:49,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:35:47" (1/3) ... [2020-10-12 18:35:49,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33919921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:35:49, skipping insertion in model container [2020-10-12 18:35:49,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:35:47" (2/3) ... [2020-10-12 18:35:49,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33919921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:35:49, skipping insertion in model container [2020-10-12 18:35:49,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:35:49" (3/3) ... [2020-10-12 18:35:49,493 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-12 18:35:49,503 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:35:49,510 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:35:49,522 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:35:49,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:35:49,549 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:35:49,549 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:35:49,549 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:35:49,549 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:35:49,549 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:35:49,550 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:35:49,550 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:35:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-10-12 18:35:49,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:35:49,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:49,590 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] [2020-10-12 18:35:49,591 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:49,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:49,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1945326856, now seen corresponding path program 1 times [2020-10-12 18:35:49,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:49,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797516833] [2020-10-12 18:35:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:50,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:50,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:50,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:35:50,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:50,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-10-12 18:35:50,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 18:35:50,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:35:51,235 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:35:51,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:51,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:35:51,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:51,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:51,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:35:51,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 18:35:51,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:51,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:35:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:35:51,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:51,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:35:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:51,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:35:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:51,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:35:51,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:35:51,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:35:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:51,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:35:51,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:51,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:35:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:51,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:35:51,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:51,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 18:35:51,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:35:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:51,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:51,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:51,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:35:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:51,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:51,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:51,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:51,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:51,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:51,826 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 18:35:51,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797516833] [2020-10-12 18:35:51,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:51,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:35:51,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272402104] [2020-10-12 18:35:51,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:35:51,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:51,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:35:51,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:35:51,862 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 7 states. [2020-10-12 18:35:53,049 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:35:53,744 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:35:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:54,116 INFO L93 Difference]: Finished difference Result 483 states and 809 transitions. [2020-10-12 18:35:54,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:35:54,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-12 18:35:54,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:54,139 INFO L225 Difference]: With dead ends: 483 [2020-10-12 18:35:54,139 INFO L226 Difference]: Without dead ends: 345 [2020-10-12 18:35:54,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:35:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-12 18:35:54,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 317. [2020-10-12 18:35:54,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-12 18:35:54,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 544 transitions. [2020-10-12 18:35:54,238 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 544 transitions. Word has length 104 [2020-10-12 18:35:54,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:54,239 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 544 transitions. [2020-10-12 18:35:54,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:35:54,239 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 544 transitions. [2020-10-12 18:35:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:35:54,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:54,245 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] [2020-10-12 18:35:54,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:35:54,245 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:54,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1521680134, now seen corresponding path program 1 times [2020-10-12 18:35:54,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:54,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75391886] [2020-10-12 18:35:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:55,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:55,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:35:55,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-12 18:35:55,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:35:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-12 18:35:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:55,946 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:35:55,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:55,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:55,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:55,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:35:55,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:55,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:56,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:56,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:56,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:35:56,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:56,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-12 18:35:56,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:56,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:56,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:35:56,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:56,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:35:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:56,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:56,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:56,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:35:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:35:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:35:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 18:35:56,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:35:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:56,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:56,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:56,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:56,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:56,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:35:56,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:56,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:56,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:56,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:35:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:56,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:56,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:56,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:56,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:56,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:35:56,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:56,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:56,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:56,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:56,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:35:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:35:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:56,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:56,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:56,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:56,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:56,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:56,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:56,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:56,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:56,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:56,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:56,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:35:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:56,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:56,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:56,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:56,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:35:56,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:56,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:56,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 18:35:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:56,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:56,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:56,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:56,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:35:56,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:56,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:56,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:56,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:56,737 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 18:35:56,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75391886] [2020-10-12 18:35:56,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:56,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:35:56,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825818420] [2020-10-12 18:35:56,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:35:56,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:56,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:35:56,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:35:56,745 INFO L87 Difference]: Start difference. First operand 317 states and 544 transitions. Second operand 13 states. [2020-10-12 18:35:59,108 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:35:59,504 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:35:59,961 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:36:00,361 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:36:03,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:03,180 INFO L93 Difference]: Finished difference Result 486 states and 813 transitions. [2020-10-12 18:36:03,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:36:03,181 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-12 18:36:03,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:03,187 INFO L225 Difference]: With dead ends: 486 [2020-10-12 18:36:03,187 INFO L226 Difference]: Without dead ends: 355 [2020-10-12 18:36:03,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:36:03,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-10-12 18:36:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 317. [2020-10-12 18:36:03,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-12 18:36:03,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 514 transitions. [2020-10-12 18:36:03,240 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 514 transitions. Word has length 104 [2020-10-12 18:36:03,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:03,241 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 514 transitions. [2020-10-12 18:36:03,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:36:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 514 transitions. [2020-10-12 18:36:03,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 18:36:03,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:03,245 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, 1] [2020-10-12 18:36:03,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:36:03,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:03,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:03,246 INFO L82 PathProgramCache]: Analyzing trace with hash -662386256, now seen corresponding path program 1 times [2020-10-12 18:36:03,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:03,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255105260] [2020-10-12 18:36:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:03,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:04,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:08,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:08,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-12 18:36:08,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:36:08,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:36:08,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-12 18:36:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 18:36:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:08,631 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:08,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:08,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:08,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:08,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:08,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:08,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:36:08,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:08,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:08,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:08,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:08,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:36:08,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 18:36:08,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:36:08,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:36:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:08,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:08,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:08,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:08,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:08,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:36:08,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:08,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:36:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:08,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:08,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:08,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:08,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:08,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:08,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:36:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:08,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:36:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:08,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:08,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:08,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:08,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:08,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:36:08,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:08,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:08,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:08,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:08,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:36:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:08,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:08,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:08,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:08,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:08,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:08,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:09,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:36:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:09,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:09,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:09,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:09,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:09,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:09,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:09,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:36:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:09,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:09,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:09,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:09,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:36:09,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:09,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:09,176 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 18:36:09,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255105260] [2020-10-12 18:36:09,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:09,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:36:09,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773387701] [2020-10-12 18:36:09,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:36:09,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:09,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:36:09,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:36:09,179 INFO L87 Difference]: Start difference. First operand 317 states and 514 transitions. Second operand 10 states. [2020-10-12 18:36:09,546 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:14,568 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:36:14,716 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:36:14,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:14,911 INFO L93 Difference]: Finished difference Result 619 states and 996 transitions. [2020-10-12 18:36:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:36:14,916 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 133 [2020-10-12 18:36:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:14,921 INFO L225 Difference]: With dead ends: 619 [2020-10-12 18:36:14,922 INFO L226 Difference]: Without dead ends: 494 [2020-10-12 18:36:14,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:36:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-12 18:36:14,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 433. [2020-10-12 18:36:14,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-10-12 18:36:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 700 transitions. [2020-10-12 18:36:14,974 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 700 transitions. Word has length 133 [2020-10-12 18:36:14,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:14,975 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 700 transitions. [2020-10-12 18:36:14,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:36:14,975 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 700 transitions. [2020-10-12 18:36:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 18:36:14,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:14,980 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, 1, 1, 1, 1] [2020-10-12 18:36:14,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:36:14,980 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:14,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:14,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1145496631, now seen corresponding path program 1 times [2020-10-12 18:36:14,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:14,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220217473] [2020-10-12 18:36:14,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:15,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:15,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 18:36:20,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:36:20,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 18:36:20,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-12 18:36:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 18:36:20,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,388 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:20,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:20,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:36:20,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:36:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 18:36:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:36:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:20,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:20,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:36:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:20,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:20,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:20,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:36:20,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:36:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:20,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:36:20,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:36:20,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 18:36:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:20,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:20,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:20,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:20,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:20,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:20,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 18:36:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:20,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:20,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:20,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 18:36:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:20,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:20,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:20,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:20,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:20,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:20,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:20,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:20,859 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 18:36:20,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220217473] [2020-10-12 18:36:20,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:20,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:36:20,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948676414] [2020-10-12 18:36:20,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:36:20,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:20,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:36:20,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:36:20,863 INFO L87 Difference]: Start difference. First operand 433 states and 700 transitions. Second operand 9 states. [2020-10-12 18:36:21,189 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:36:25,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:25,576 INFO L93 Difference]: Finished difference Result 774 states and 1249 transitions. [2020-10-12 18:36:25,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:36:25,576 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 136 [2020-10-12 18:36:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:25,580 INFO L225 Difference]: With dead ends: 774 [2020-10-12 18:36:25,581 INFO L226 Difference]: Without dead ends: 647 [2020-10-12 18:36:25,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:36:25,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-10-12 18:36:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 561. [2020-10-12 18:36:25,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-12 18:36:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 908 transitions. [2020-10-12 18:36:25,639 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 908 transitions. Word has length 136 [2020-10-12 18:36:25,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:25,639 INFO L479 AbstractCegarLoop]: Abstraction has 561 states and 908 transitions. [2020-10-12 18:36:25,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:36:25,640 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 908 transitions. [2020-10-12 18:36:25,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 18:36:25,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:25,643 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, 1, 1, 1, 1] [2020-10-12 18:36:25,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:36:25,643 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:25,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:25,643 INFO L82 PathProgramCache]: Analyzing trace with hash 866830931, now seen corresponding path program 1 times [2020-10-12 18:36:25,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:25,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092639019] [2020-10-12 18:36:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:25,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:25,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:26,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:28,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:30,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:30,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 18:36:30,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:36:30,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 18:36:30,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 18:36:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:36:30,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:31,123 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:31,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:31,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 18:36:31,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:31,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:36:31,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 18:36:31,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:31,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:36:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:36:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:31,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:31,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:31,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:31,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:36:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:31,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:36:31,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:31,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:36:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:31,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:36:31,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:31,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:36:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 18:36:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:31,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:36:31,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:31,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 18:36:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:31,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:31,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:31,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 18:36:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:31,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:31,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:31,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:31,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:36:31,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:31,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:31,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:31,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:31,796 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 18:36:31,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092639019] [2020-10-12 18:36:31,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:31,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:36:31,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444566746] [2020-10-12 18:36:31,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:36:31,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:31,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:36:31,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:36:31,799 INFO L87 Difference]: Start difference. First operand 561 states and 908 transitions. Second operand 10 states. [2020-10-12 18:36:32,140 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:36,118 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:36,890 INFO L93 Difference]: Finished difference Result 1415 states and 2267 transitions. [2020-10-12 18:36:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:36:36,891 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 136 [2020-10-12 18:36:36,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:36,900 INFO L225 Difference]: With dead ends: 1415 [2020-10-12 18:36:36,901 INFO L226 Difference]: Without dead ends: 1068 [2020-10-12 18:36:36,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:36:36,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-10-12 18:36:37,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 887. [2020-10-12 18:36:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2020-10-12 18:36:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1403 transitions. [2020-10-12 18:36:37,023 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1403 transitions. Word has length 136 [2020-10-12 18:36:37,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:37,025 INFO L479 AbstractCegarLoop]: Abstraction has 887 states and 1403 transitions. [2020-10-12 18:36:37,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:36:37,025 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1403 transitions. [2020-10-12 18:36:37,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-12 18:36:37,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:37,028 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:36:37,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:36:37,028 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:37,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:37,029 INFO L82 PathProgramCache]: Analyzing trace with hash 97680642, now seen corresponding path program 1 times [2020-10-12 18:36:37,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:37,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719640245] [2020-10-12 18:36:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:37,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:37,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:37,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:37,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:38,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:38,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:42,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:42,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-12 18:36:42,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:36:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 18:36:42,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-12 18:36:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:36:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:42,519 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:42,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:42,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:42,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:42,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:42,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:36:42,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:42,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:42,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:42,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:42,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:42,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:42,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:36:42,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:42,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 18:36:42,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:42,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:42,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:42,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:36:42,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:42,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:36:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:42,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:42,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:36:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:42,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:36:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:42,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:42,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:42,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:42,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:36:42,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:42,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:36:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:42,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:42,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:42,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:42,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:42,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:42,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:36:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:42,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:42,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:42,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:42,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:36:42,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:42,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:42,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:36:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:43,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:43,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:43,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:43,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:43,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:43,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:43,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:43,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:43,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:43,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:43,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 18:36:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:43,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:43,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:43,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:43,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:43,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:36:43,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:43,082 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 18:36:43,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719640245] [2020-10-12 18:36:43,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:43,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:36:43,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250434610] [2020-10-12 18:36:43,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:36:43,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:43,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:36:43,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:36:43,087 INFO L87 Difference]: Start difference. First operand 887 states and 1403 transitions. Second operand 10 states. [2020-10-12 18:36:43,400 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:47,747 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:48,123 INFO L93 Difference]: Finished difference Result 2506 states and 3924 transitions. [2020-10-12 18:36:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:36:48,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2020-10-12 18:36:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:48,136 INFO L225 Difference]: With dead ends: 2506 [2020-10-12 18:36:48,136 INFO L226 Difference]: Without dead ends: 1842 [2020-10-12 18:36:48,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:36:48,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2020-10-12 18:36:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1507. [2020-10-12 18:36:48,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1507 states. [2020-10-12 18:36:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2355 transitions. [2020-10-12 18:36:48,282 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2355 transitions. Word has length 139 [2020-10-12 18:36:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:48,282 INFO L479 AbstractCegarLoop]: Abstraction has 1507 states and 2355 transitions. [2020-10-12 18:36:48,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:36:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2355 transitions. [2020-10-12 18:36:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-12 18:36:48,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:48,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:36:48,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:36:48,286 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:48,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:48,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1856710395, now seen corresponding path program 1 times [2020-10-12 18:36:48,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:48,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742415983] [2020-10-12 18:36:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:48,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:49,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:52,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 18:36:53,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:36:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:36:53,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 18:36:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 18:36:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,656 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:36:53,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:36:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:36:53,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:36:53,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:36:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:36:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 18:36:53,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 18:36:53,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:36:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:36:53,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:36:53,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:53,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:36:53,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:36:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:53,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:36:53,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:53,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:36:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:53,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:36:53,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:53,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:53,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:36:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:36:53,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:36:53,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:36:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:36:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:36:53,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:36:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:53,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:53,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:53,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:53,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:53,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:36:53,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:36:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:36:53,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:36:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:54,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 18:36:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:54,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:54,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:36:54,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:36:54,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:36:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:36:54,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:36:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:36:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:36:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:36:54,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:36:54,053 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 18:36:54,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742415983] [2020-10-12 18:36:54,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:36:54,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:36:54,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307616299] [2020-10-12 18:36:54,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:36:54,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:36:54,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:36:54,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:36:54,059 INFO L87 Difference]: Start difference. First operand 1507 states and 2355 transitions. Second operand 10 states. [2020-10-12 18:36:54,431 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:58,906 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:36:59,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:36:59,323 INFO L93 Difference]: Finished difference Result 4650 states and 7204 transitions. [2020-10-12 18:36:59,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:36:59,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-12 18:36:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:36:59,340 INFO L225 Difference]: With dead ends: 4650 [2020-10-12 18:36:59,340 INFO L226 Difference]: Without dead ends: 3366 [2020-10-12 18:36:59,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:36:59,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2020-10-12 18:36:59,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 2705. [2020-10-12 18:36:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2705 states. [2020-10-12 18:36:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 4169 transitions. [2020-10-12 18:36:59,572 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 4169 transitions. Word has length 142 [2020-10-12 18:36:59,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:36:59,573 INFO L479 AbstractCegarLoop]: Abstraction has 2705 states and 4169 transitions. [2020-10-12 18:36:59,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:36:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 4169 transitions. [2020-10-12 18:36:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 18:36:59,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:36:59,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:36:59,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:36:59,576 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:36:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:36:59,577 INFO L82 PathProgramCache]: Analyzing trace with hash -334140306, now seen corresponding path program 1 times [2020-10-12 18:36:59,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:36:59,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290921224] [2020-10-12 18:36:59,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:36:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:36:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:36:59,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:00,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:00,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:00,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:00,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:01,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:04,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:37:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:04,993 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:04,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:05,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:37:05,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:05,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:37:05,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 18:37:05,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:37:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:37:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:05,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:37:05,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:37:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:05,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:37:05,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:37:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:05,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:37:05,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:05,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:37:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:05,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:37:05,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:37:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:05,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:37:05,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:05,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:05,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:37:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:05,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:05,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:05,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:05,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:37:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:37:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:05,557 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 18:37:05,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290921224] [2020-10-12 18:37:05,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:05,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:37:05,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263052206] [2020-10-12 18:37:05,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:37:05,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:05,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:37:05,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:37:05,559 INFO L87 Difference]: Start difference. First operand 2705 states and 4169 transitions. Second operand 16 states. [2020-10-12 18:37:05,948 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:37:07,495 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:07,805 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:08,129 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:37:08,391 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:08,930 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:09,339 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:10,154 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:11,627 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:37:11,977 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:37:12,291 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:13,061 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:37:13,744 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:37:15,372 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:37:16,067 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:37:17,793 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:37:17,927 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:37:18,062 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:18,364 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:37:18,677 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:37:19,648 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:37:19,894 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:37:20,223 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:37:20,392 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:20,737 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:37:20,908 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:37:21,206 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:37:23,351 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:37:23,886 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:37:24,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:24,525 INFO L93 Difference]: Finished difference Result 20792 states and 32458 transitions. [2020-10-12 18:37:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-12 18:37:24,526 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 145 [2020-10-12 18:37:24,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:24,630 INFO L225 Difference]: With dead ends: 20792 [2020-10-12 18:37:24,630 INFO L226 Difference]: Without dead ends: 18310 [2020-10-12 18:37:24,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=1295, Invalid=5347, Unknown=0, NotChecked=0, Total=6642 [2020-10-12 18:37:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18310 states. [2020-10-12 18:37:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18310 to 14561. [2020-10-12 18:37:25,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14561 states. [2020-10-12 18:37:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14561 states to 14561 states and 22667 transitions. [2020-10-12 18:37:25,887 INFO L78 Accepts]: Start accepts. Automaton has 14561 states and 22667 transitions. Word has length 145 [2020-10-12 18:37:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:25,888 INFO L479 AbstractCegarLoop]: Abstraction has 14561 states and 22667 transitions. [2020-10-12 18:37:25,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:37:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 14561 states and 22667 transitions. [2020-10-12 18:37:25,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 18:37:25,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:25,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:37:25,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:37:25,894 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:25,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:25,895 INFO L82 PathProgramCache]: Analyzing trace with hash -2122396189, now seen corresponding path program 1 times [2020-10-12 18:37:25,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:25,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123296647] [2020-10-12 18:37:25,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:26,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:26,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:27,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:30,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 18:37:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,314 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:31,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:31,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:37:31,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:31,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:31,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:31,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:37:31,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 18:37:31,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 18:37:31,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:37:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:31,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:37:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:31,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:37:31,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:31,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:31,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:31,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:37:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:31,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:37:31,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:37:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:37:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:31,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:37:31,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:31,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:37:31,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:37:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:31,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:31,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:31,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:37:31,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:31,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:37:31,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:31,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:37:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:37:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:31,769 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 18:37:31,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123296647] [2020-10-12 18:37:31,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:31,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:37:31,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976383506] [2020-10-12 18:37:31,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:37:31,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:31,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:37:31,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:37:31,771 INFO L87 Difference]: Start difference. First operand 14561 states and 22667 transitions. Second operand 11 states. [2020-10-12 18:37:32,111 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:34,060 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:34,780 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-12 18:37:35,233 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:37:35,873 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 242 [2020-10-12 18:37:36,478 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2020-10-12 18:37:36,792 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:37:36,941 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:37:37,159 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2020-10-12 18:37:38,180 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2020-10-12 18:37:39,893 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2020-10-12 18:37:40,175 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 122 [2020-10-12 18:37:41,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:37:41,841 INFO L93 Difference]: Finished difference Result 40469 states and 63132 transitions. [2020-10-12 18:37:41,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:37:41,841 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2020-10-12 18:37:41,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:37:41,971 INFO L225 Difference]: With dead ends: 40469 [2020-10-12 18:37:41,972 INFO L226 Difference]: Without dead ends: 26136 [2020-10-12 18:37:42,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2020-10-12 18:37:42,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26136 states. [2020-10-12 18:37:44,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26136 to 20983. [2020-10-12 18:37:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20983 states. [2020-10-12 18:37:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20983 states to 20983 states and 32652 transitions. [2020-10-12 18:37:44,390 INFO L78 Accepts]: Start accepts. Automaton has 20983 states and 32652 transitions. Word has length 146 [2020-10-12 18:37:44,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:37:44,390 INFO L479 AbstractCegarLoop]: Abstraction has 20983 states and 32652 transitions. [2020-10-12 18:37:44,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:37:44,391 INFO L276 IsEmpty]: Start isEmpty. Operand 20983 states and 32652 transitions. [2020-10-12 18:37:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 18:37:44,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:37:44,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:37:44,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:37:44,396 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:37:44,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:37:44,396 INFO L82 PathProgramCache]: Analyzing trace with hash -470472707, now seen corresponding path program 1 times [2020-10-12 18:37:44,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:37:44,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545793061] [2020-10-12 18:37:44,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:37:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:44,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:44,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:45,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:45,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:45,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:49,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:49,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:37:49,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:37:49,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 18:37:49,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:37:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-12 18:37:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 18:37:49,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:49,817 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:37:49,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:37:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:49,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:49,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:49,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:37:49,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:49,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:37:49,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:49,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:37:49,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:49,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:37:49,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:49,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:37:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:49,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:49,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:37:49,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:49,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:37:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:49,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:49,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:49,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:37:49,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:49,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:37:49,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:49,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:49,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:49,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:37:49,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:49,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:37:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:49,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:49,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:49,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:49,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:49,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:37:49,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:49,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:50,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:37:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:50,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:50,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:50,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:37:50,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:50,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:37:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:50,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:50,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:50,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:37:50,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:50,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:37:50,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:37:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:37:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:37:50,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:50,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:37:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:50,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:50,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:37:50,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:37:50,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:37:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:37:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:37:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:50,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 18:37:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:37:50,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:37:50,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:37:50,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:37:50,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:37:50,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:37:50,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:37:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:37:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:37:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:37:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:37:50,309 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 18:37:50,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545793061] [2020-10-12 18:37:50,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:37:50,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:37:50,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327588025] [2020-10-12 18:37:50,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:37:50,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:37:50,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:37:50,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:37:50,311 INFO L87 Difference]: Start difference. First operand 20983 states and 32652 transitions. Second operand 16 states. [2020-10-12 18:37:50,672 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:37:52,942 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:53,275 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:37:53,625 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:37:53,848 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:37:54,586 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:37:54,764 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:55,202 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:37:55,363 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:37:56,152 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:37:56,509 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:37:57,651 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:37:57,988 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:37:58,762 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:37:58,912 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:37:59,085 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:37:59,951 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:01,298 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:38:01,729 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:38:02,049 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 120 [2020-10-12 18:38:02,400 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:02,553 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:38:02,770 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:38:02,911 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:38:03,844 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:06,010 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:07,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:07,219 INFO L93 Difference]: Finished difference Result 37139 states and 58120 transitions. [2020-10-12 18:38:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-12 18:38:07,220 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 146 [2020-10-12 18:38:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:07,319 INFO L225 Difference]: With dead ends: 37139 [2020-10-12 18:38:07,319 INFO L226 Difference]: Without dead ends: 24408 [2020-10-12 18:38:07,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1549 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1057, Invalid=3913, Unknown=0, NotChecked=0, Total=4970 [2020-10-12 18:38:07,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24408 states. [2020-10-12 18:38:08,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24408 to 19204. [2020-10-12 18:38:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19204 states. [2020-10-12 18:38:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19204 states to 19204 states and 29777 transitions. [2020-10-12 18:38:08,730 INFO L78 Accepts]: Start accepts. Automaton has 19204 states and 29777 transitions. Word has length 146 [2020-10-12 18:38:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:08,731 INFO L479 AbstractCegarLoop]: Abstraction has 19204 states and 29777 transitions. [2020-10-12 18:38:08,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:38:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 19204 states and 29777 transitions. [2020-10-12 18:38:08,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 18:38:08,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:08,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:38:08,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:38:08,736 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:08,737 INFO L82 PathProgramCache]: Analyzing trace with hash 401958085, now seen corresponding path program 1 times [2020-10-12 18:38:08,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:08,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659747984] [2020-10-12 18:38:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:08,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:08,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:08,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:08,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:09,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:09,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:09,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:09,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:09,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:10,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:13,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 18:38:13,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,173 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:14,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:14,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:38:14,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:14,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:38:14,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 18:38:14,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:38:14,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:38:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:14,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:38:14,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:14,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:38:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:38:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:14,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:14,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:38:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:14,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:38:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:38:14,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:38:14,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:14,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:14,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:38:14,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 18:38:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:14,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:38:14,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:14,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 18:38:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:14,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:14,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:14,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:14,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:38:14,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:14,660 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 18:38:14,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659747984] [2020-10-12 18:38:14,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:14,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:38:14,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991712226] [2020-10-12 18:38:14,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:38:14,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:14,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:38:14,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:38:14,662 INFO L87 Difference]: Start difference. First operand 19204 states and 29777 transitions. Second operand 16 states. [2020-10-12 18:38:15,401 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 244 [2020-10-12 18:38:17,453 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:17,801 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:38:18,159 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:18,533 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-10-12 18:38:19,245 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:19,545 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2020-10-12 18:38:19,738 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:20,101 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-10-12 18:38:20,893 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-10-12 18:38:21,367 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:38:22,100 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:38:22,567 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:38:22,920 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:38:23,988 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:24,274 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:25,095 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:25,353 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:38:25,574 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:26,472 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:26,812 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:27,285 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:27,664 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-12 18:38:27,814 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:28,145 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:28,290 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:29,033 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:29,479 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:38:29,672 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:29,885 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:30,043 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:30,205 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:31,080 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:38:31,416 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:38:32,437 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:38:32,603 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:32,996 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:33,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:38:33,743 INFO L93 Difference]: Finished difference Result 38999 states and 60717 transitions. [2020-10-12 18:38:33,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-12 18:38:33,743 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 146 [2020-10-12 18:38:33,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:38:33,832 INFO L225 Difference]: With dead ends: 38999 [2020-10-12 18:38:33,832 INFO L226 Difference]: Without dead ends: 29283 [2020-10-12 18:38:33,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1495 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=1010, Invalid=3960, Unknown=0, NotChecked=0, Total=4970 [2020-10-12 18:38:33,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29283 states. [2020-10-12 18:38:35,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29283 to 23179. [2020-10-12 18:38:35,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23179 states. [2020-10-12 18:38:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23179 states to 23179 states and 36163 transitions. [2020-10-12 18:38:35,311 INFO L78 Accepts]: Start accepts. Automaton has 23179 states and 36163 transitions. Word has length 146 [2020-10-12 18:38:35,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:38:35,312 INFO L479 AbstractCegarLoop]: Abstraction has 23179 states and 36163 transitions. [2020-10-12 18:38:35,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:38:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand 23179 states and 36163 transitions. [2020-10-12 18:38:35,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-12 18:38:35,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:38:35,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:38:35,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:38:35,317 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:38:35,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:38:35,317 INFO L82 PathProgramCache]: Analyzing trace with hash 129220157, now seen corresponding path program 1 times [2020-10-12 18:38:35,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:38:35,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967228353] [2020-10-12 18:38:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:38:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:35,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:35,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:35,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:35,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:35,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:36,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:37,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:37,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:37,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:37,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:38,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:40,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:40,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:38:40,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 18:38:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-12 18:38:40,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:38:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 18:38:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:38:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:40,971 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:38:40,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:38:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:40,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:40,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:38:40,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:38:40,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:38:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:40,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:38:40,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:40,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:38:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:41,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:38:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:41,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:38:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:41,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:41,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:38:41,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:41,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:38:41,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:38:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:41,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:38:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:41,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:38:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:38:41,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:38:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:38:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:38:41,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:41,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 18:38:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:41,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:41,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:41,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:38:41,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:41,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 18:38:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:41,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:41,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:41,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:41,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:38:41,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:41,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:41,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:41,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 18:38:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:41,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:41,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:38:41,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:41,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:38:41,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:41,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:38:41,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:38:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:38:41,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:41,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 18:38:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:38:41,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:38:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:38:41,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:38:41,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:38:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:38:41,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:38:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:38:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:38:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:38:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:38:41,458 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 18:38:41,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967228353] [2020-10-12 18:38:41,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:38:41,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:38:41,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966559078] [2020-10-12 18:38:41,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:38:41,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:38:41,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:38:41,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:38:41,460 INFO L87 Difference]: Start difference. First operand 23179 states and 36163 transitions. Second operand 16 states. [2020-10-12 18:38:42,223 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 246 [2020-10-12 18:38:44,695 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:38:45,014 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:45,340 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:38:45,710 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-10-12 18:38:46,212 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2020-10-12 18:38:46,563 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2020-10-12 18:38:47,181 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2020-10-12 18:38:48,583 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:38:48,939 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:38:49,320 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 18:38:49,697 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 18:38:50,838 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:50,985 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:51,140 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:51,286 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:52,242 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:52,612 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:52,759 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:52,985 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:53,148 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:53,743 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:53,884 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:54,162 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:38:54,948 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:38:55,096 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:55,239 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:55,393 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:38:55,534 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:38:55,705 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:55,864 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:56,633 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:57,391 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:57,568 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:38:58,044 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:38:58,199 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:00,170 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-12 18:39:01,000 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:39:01,175 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:39:01,839 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:02,038 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:02,376 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:02,523 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:39:02,908 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:39:03,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:03,779 INFO L93 Difference]: Finished difference Result 45790 states and 71440 transitions. [2020-10-12 18:39:03,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 18:39:03,780 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 146 [2020-10-12 18:39:03,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:39:03,905 INFO L225 Difference]: With dead ends: 45790 [2020-10-12 18:39:03,906 INFO L226 Difference]: Without dead ends: 37970 [2020-10-12 18:39:03,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2189 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=1259, Invalid=5383, Unknown=0, NotChecked=0, Total=6642 [2020-10-12 18:39:03,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37970 states. [2020-10-12 18:39:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37970 to 29474. [2020-10-12 18:39:05,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29474 states. [2020-10-12 18:39:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29474 states to 29474 states and 46074 transitions. [2020-10-12 18:39:05,764 INFO L78 Accepts]: Start accepts. Automaton has 29474 states and 46074 transitions. Word has length 146 [2020-10-12 18:39:05,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:39:05,764 INFO L479 AbstractCegarLoop]: Abstraction has 29474 states and 46074 transitions. [2020-10-12 18:39:05,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:39:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 29474 states and 46074 transitions. [2020-10-12 18:39:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 18:39:05,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:39:05,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:39:05,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:39:05,770 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:39:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:39:05,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1775438651, now seen corresponding path program 1 times [2020-10-12 18:39:05,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:39:05,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843312513] [2020-10-12 18:39:05,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:39:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:05,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:05,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:05,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:06,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:06,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:06,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:06,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:06,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:06,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:07,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:10,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:10,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-12 18:39:10,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:39:10,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 18:39:10,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:39:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 18:39:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 18:39:10,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,159 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 18:39:11,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:39:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:39:11,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:39:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 18:39:11,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 18:39:11,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:39:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:39:11,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:39:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:39:11,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:39:11,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:39:11,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:39:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:39:11,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:39:11,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:39:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:39:11,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:39:11,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:39:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:39:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:39:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:39:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:39:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:11,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:11,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:39:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:39:11,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:39:11,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:39:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:39:11,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:39:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:39:11,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:39:11,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:39:11,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:39:11,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:39:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:39:11,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:39:11,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:39:11,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:39:11,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:39:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:39:11,510 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 18:39:11,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843312513] [2020-10-12 18:39:11,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:39:11,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:39:11,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467173932] [2020-10-12 18:39:11,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:39:11,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:39:11,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:39:11,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:39:11,512 INFO L87 Difference]: Start difference. First operand 29474 states and 46074 transitions. Second operand 11 states. [2020-10-12 18:39:11,854 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:13,894 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 18:39:14,125 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:39:14,528 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:39:14,849 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:39:15,168 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:39:17,866 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 18:39:18,217 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 18:39:20,668 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:39:21,078 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:39:21,833 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:39:24,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:39:24,805 INFO L93 Difference]: Finished difference Result 109265 states and 171395 transitions. [2020-10-12 18:39:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:39:24,806 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2020-10-12 18:39:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.