/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:01:27,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:01:27,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:01:27,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:01:27,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:01:27,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:01:27,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:01:27,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:01:27,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:01:27,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:01:27,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:01:27,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:01:27,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:01:27,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:01:27,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:01:27,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:01:27,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:01:27,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:01:27,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:01:27,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:01:27,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:01:27,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:01:27,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:01:27,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:01:27,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:01:27,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:01:27,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:01:27,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:01:27,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:01:27,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:01:27,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:01:27,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:01:27,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:01:27,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:01:27,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:01:27,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:01:27,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:01:27,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:01:27,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:01:27,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:01:27,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:01:27,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 08:01:27,507 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:01:27,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:01:27,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:01:27,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:01:27,514 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:01:27,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:01:27,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:01:27,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:01:27,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:01:27,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:01:27,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:01:27,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:01:27,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:01:27,516 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:01:27,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:01:27,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:01:27,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:01:27,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:01:27,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:01:27,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:01:27,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:01:27,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:01:27,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:01:27,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:01:27,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:01:27,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:01:27,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:01:27,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:01:27,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:01:27,521 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:01:27,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:01:27,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:01:27,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:01:27,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:01:27,868 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:01:27,869 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-14 08:01:27,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/722a3163e/3083db00dc7d426c91b982e0ea44f9b3/FLAG3bf96b78f [2020-10-14 08:01:28,450 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:01:28,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-14 08:01:28,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/722a3163e/3083db00dc7d426c91b982e0ea44f9b3/FLAG3bf96b78f [2020-10-14 08:01:28,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/722a3163e/3083db00dc7d426c91b982e0ea44f9b3 [2020-10-14 08:01:28,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:01:28,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:01:28,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:01:28,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:01:28,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:01:28,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:01:28" (1/1) ... [2020-10-14 08:01:28,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f1707e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:28, skipping insertion in model container [2020-10-14 08:01:28,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:01:28" (1/1) ... [2020-10-14 08:01:28,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:01:28,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:01:29,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:01:29,234 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:01:29,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:01:29,311 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:01:29,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29 WrapperNode [2020-10-14 08:01:29,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:01:29,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:01:29,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:01:29,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:01:29,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... [2020-10-14 08:01:29,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... [2020-10-14 08:01:29,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... [2020-10-14 08:01:29,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... [2020-10-14 08:01:29,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... [2020-10-14 08:01:29,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... [2020-10-14 08:01:29,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... [2020-10-14 08:01:29,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:01:29,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:01:29,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:01:29,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:01:29,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:01:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:01:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:01:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:01:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:01:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:01:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 08:01:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:01:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:01:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:01:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:01:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:01:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:01:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:01:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:01:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:01:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:01:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:01:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:01:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:01:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:01:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 08:01:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:01:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:01:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:01:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:01:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:01:30,047 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:01:30,048 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:01:30,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:01:30 BoogieIcfgContainer [2020-10-14 08:01:30,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:01:30,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:01:30,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:01:30,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:01:30,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:01:28" (1/3) ... [2020-10-14 08:01:30,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf98f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:01:30, skipping insertion in model container [2020-10-14 08:01:30,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:01:29" (2/3) ... [2020-10-14 08:01:30,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf98f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:01:30, skipping insertion in model container [2020-10-14 08:01:30,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:01:30" (3/3) ... [2020-10-14 08:01:30,062 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-14 08:01:30,073 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:01:30,081 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:01:30,096 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:01:30,122 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:01:30,122 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:01:30,122 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:01:30,123 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:01:30,123 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:01:30,123 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:01:30,123 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:01:30,124 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:01:30,146 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-10-14 08:01:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 08:01:30,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:30,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:30,158 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:30,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:30,163 INFO L82 PathProgramCache]: Analyzing trace with hash 461655447, now seen corresponding path program 1 times [2020-10-14 08:01:30,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:30,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838305765] [2020-10-14 08:01:30,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:01:30,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 08:01:30,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 08:01:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:30,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:01:30,896 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 08:01:30,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:30,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:01:30,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:30,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:30,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:30,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:30,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:30,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 08:01:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:30,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:30,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:30,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:01:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:31,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:31,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:31,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:31,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:31,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:31,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:31,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:01:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:31,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:31,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:31,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:31,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:31,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:31,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:31,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:31,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:31,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:31,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:31,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 08:01:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:31,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:31,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:31,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:31,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:31,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:31,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:31,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:31,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:01:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:31,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:31,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:31,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:31,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:31,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:31,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:01:31,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838305765] [2020-10-14 08:01:31,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:01:31,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:01:31,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37168963] [2020-10-14 08:01:31,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:01:31,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:31,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:01:31,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:01:31,131 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 7 states. [2020-10-14 08:01:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:31,995 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2020-10-14 08:01:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:01:31,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-10-14 08:01:31,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:32,009 INFO L225 Difference]: With dead ends: 221 [2020-10-14 08:01:32,009 INFO L226 Difference]: Without dead ends: 126 [2020-10-14 08:01:32,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:01:32,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-14 08:01:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2020-10-14 08:01:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-14 08:01:32,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 183 transitions. [2020-10-14 08:01:32,070 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 183 transitions. Word has length 56 [2020-10-14 08:01:32,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:32,071 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 183 transitions. [2020-10-14 08:01:32,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:01:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 183 transitions. [2020-10-14 08:01:32,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 08:01:32,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:32,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:32,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:01:32,074 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:32,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:32,075 INFO L82 PathProgramCache]: Analyzing trace with hash -435737831, now seen corresponding path program 1 times [2020-10-14 08:01:32,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:32,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271119503] [2020-10-14 08:01:32,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 08:01:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-14 08:01:32,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:01:32,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:32,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:01:32,589 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 08:01:32,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:32,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:01:32,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:32,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:32,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:01:32,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:32,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:32,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:32,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 08:01:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:32,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:32,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:32,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:32,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:01:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:32,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:32,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:32,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:32,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:01:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:32,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:32,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:32,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 08:01:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:32,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:32,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:32,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:32,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:32,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:01:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:32,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:32,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:32,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:32,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:32,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:32,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:01:32,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271119503] [2020-10-14 08:01:32,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:01:32,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:01:32,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056062860] [2020-10-14 08:01:32,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:01:32,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:32,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:01:32,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:01:32,807 INFO L87 Difference]: Start difference. First operand 122 states and 183 transitions. Second operand 11 states. [2020-10-14 08:01:32,976 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 08:01:34,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:34,224 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2020-10-14 08:01:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:01:34,225 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-10-14 08:01:34,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:34,229 INFO L225 Difference]: With dead ends: 226 [2020-10-14 08:01:34,229 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 08:01:34,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:01:34,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 08:01:34,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 122. [2020-10-14 08:01:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-14 08:01:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 159 transitions. [2020-10-14 08:01:34,263 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 159 transitions. Word has length 56 [2020-10-14 08:01:34,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:34,264 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 159 transitions. [2020-10-14 08:01:34,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:01:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 159 transitions. [2020-10-14 08:01:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 08:01:34,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:34,266 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] [2020-10-14 08:01:34,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:01:34,267 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:34,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:34,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1653521644, now seen corresponding path program 1 times [2020-10-14 08:01:34,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:34,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267131729] [2020-10-14 08:01:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:34,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:34,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:35,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:01:39,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:01:39,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:01:39,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 08:01:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 08:01:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:39,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:39,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:39,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:39,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:39,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:39,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:39,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:39,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:01:39,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:01:39,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 08:01:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:01:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:39,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:39,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:39,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:01:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:39,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:39,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:39,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:39,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:39,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:39,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:01:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:39,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:01:39,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:39,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:01:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:39,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:39,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:39,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:39,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:39,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:39,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:39,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:39,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:39,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:39,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:39,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:01:39,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267131729] [2020-10-14 08:01:39,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:01:39,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:01:39,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732057254] [2020-10-14 08:01:39,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:01:39,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:39,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:01:39,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:01:39,705 INFO L87 Difference]: Start difference. First operand 122 states and 159 transitions. Second operand 10 states. [2020-10-14 08:01:39,845 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 08:01:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:41,324 INFO L93 Difference]: Finished difference Result 285 states and 390 transitions. [2020-10-14 08:01:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:01:41,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-10-14 08:01:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:41,331 INFO L225 Difference]: With dead ends: 285 [2020-10-14 08:01:41,331 INFO L226 Difference]: Without dead ends: 201 [2020-10-14 08:01:41,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:01:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-14 08:01:41,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 192. [2020-10-14 08:01:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-14 08:01:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 259 transitions. [2020-10-14 08:01:41,354 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 259 transitions. Word has length 79 [2020-10-14 08:01:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:41,355 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 259 transitions. [2020-10-14 08:01:41,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:01:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 259 transitions. [2020-10-14 08:01:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 08:01:41,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:41,357 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] [2020-10-14 08:01:41,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:01:41,358 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:41,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:41,358 INFO L82 PathProgramCache]: Analyzing trace with hash 800826413, now seen corresponding path program 1 times [2020-10-14 08:01:41,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:41,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215204345] [2020-10-14 08:01:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:41,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:41,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:41,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 08:01:43,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:01:43,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2315 [2020-10-14 08:01:43,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 08:01:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:01:43,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:43,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:43,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:43,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:01:43,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:01:43,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:01:43,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:01:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:43,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:43,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:43,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:01:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:43,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:43,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:43,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:43,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:43,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:43,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:43,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:43,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:43,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:01:43,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:43,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:43,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:43,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:44,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:01:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:44,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:44,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:44,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:44,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:44,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:44,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:01:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:44,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 08:01:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:44,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:44,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:44,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:44,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:44,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:44,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:44,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:01:44,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215204345] [2020-10-14 08:01:44,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:01:44,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:01:44,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413625115] [2020-10-14 08:01:44,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:01:44,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:44,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:01:44,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:01:44,071 INFO L87 Difference]: Start difference. First operand 192 states and 259 transitions. Second operand 10 states. [2020-10-14 08:01:44,214 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 08:01:45,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:45,731 INFO L93 Difference]: Finished difference Result 488 states and 677 transitions. [2020-10-14 08:01:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:01:45,732 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-10-14 08:01:45,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:45,738 INFO L225 Difference]: With dead ends: 488 [2020-10-14 08:01:45,738 INFO L226 Difference]: Without dead ends: 334 [2020-10-14 08:01:45,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:01:45,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-10-14 08:01:45,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-10-14 08:01:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-14 08:01:45,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 439 transitions. [2020-10-14 08:01:45,786 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 439 transitions. Word has length 80 [2020-10-14 08:01:45,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:45,787 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 439 transitions. [2020-10-14 08:01:45,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:01:45,787 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 439 transitions. [2020-10-14 08:01:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 08:01:45,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:45,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:45,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:01:45,789 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:45,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:45,789 INFO L82 PathProgramCache]: Analyzing trace with hash 295687358, now seen corresponding path program 1 times [2020-10-14 08:01:45,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:45,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129648309] [2020-10-14 08:01:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:45,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:45,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:46,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:46,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 08:01:46,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:01:46,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-14 08:01:46,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:46,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:46,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:46,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 08:01:46,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:01:46,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:46,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:46,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:46,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:46,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:46,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:46,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:01:46,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:46,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:46,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:46,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 08:01:46,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:46,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:46,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:46,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:01:46,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:46,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:01:46,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:46,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:01:46,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:46,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:01:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:46,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:46,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:46,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:46,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:46,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:46,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:46,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:46,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:46,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:46,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:46,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:46,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:01:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:46,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:46,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:46,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:46,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:46,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:01:46,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:46,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:46,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:46,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:47,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 08:01:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:47,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:47,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:47,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:47,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:47,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:47,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:01:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:01:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:47,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:47,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:47,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:47,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:47,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:47,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:01:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:47,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:01:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:47,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:47,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:47,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:47,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:47,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:47,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:01:47,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129648309] [2020-10-14 08:01:47,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:01:47,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:01:47,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842271735] [2020-10-14 08:01:47,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:01:47,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:47,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:01:47,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:01:47,077 INFO L87 Difference]: Start difference. First operand 320 states and 439 transitions. Second operand 10 states. [2020-10-14 08:01:48,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:48,768 INFO L93 Difference]: Finished difference Result 856 states and 1189 transitions. [2020-10-14 08:01:48,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:01:48,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-14 08:01:48,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:48,773 INFO L225 Difference]: With dead ends: 856 [2020-10-14 08:01:48,773 INFO L226 Difference]: Without dead ends: 574 [2020-10-14 08:01:48,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:01:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-14 08:01:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 552. [2020-10-14 08:01:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-10-14 08:01:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 759 transitions. [2020-10-14 08:01:48,826 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 759 transitions. Word has length 81 [2020-10-14 08:01:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:48,826 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 759 transitions. [2020-10-14 08:01:48,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:01:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 759 transitions. [2020-10-14 08:01:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:01:48,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:48,828 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] [2020-10-14 08:01:48,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:01:48,829 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:48,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1620163953, now seen corresponding path program 1 times [2020-10-14 08:01:48,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:48,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810133857] [2020-10-14 08:01:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:48,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:48,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:50,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:50,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 08:01:50,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:01:50,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1927 [2020-10-14 08:01:50,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:50,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:01:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:01:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:50,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:50,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:50,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:50,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:50,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:50,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:50,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:50,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:50,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:50,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:50,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:50,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:50,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:01:50,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:50,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:01:50,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:50,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:01:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:51,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:01:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:51,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:51,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:51,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:51,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:51,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:01:51,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:51,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:51,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:51,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:51,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:51,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:51,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:01:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:51,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:51,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:51,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:51,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:51,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:01:51,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:51,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:51,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:51,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:51,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:01:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:51,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:51,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:51,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:51,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:51,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:51,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:51,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:51,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:51,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:01:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:51,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:51,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:51,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:51,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:51,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:51,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:51,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:01:51,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:51,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:51,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 08:01:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:51,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:51,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:51,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:51,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:51,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:51,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:01:51,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810133857] [2020-10-14 08:01:51,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:01:51,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 08:01:51,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877185092] [2020-10-14 08:01:51,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:01:51,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:51,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:01:51,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:01:51,242 INFO L87 Difference]: Start difference. First operand 552 states and 759 transitions. Second operand 15 states. [2020-10-14 08:01:51,420 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:01:51,567 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:01:51,986 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:01:52,372 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 08:01:52,675 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-14 08:01:53,322 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 08:01:53,469 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 08:01:53,611 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:01:53,751 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-14 08:01:53,887 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:01:54,036 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:01:54,167 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:01:55,341 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:01:55,484 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:01:55,623 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:01:55,766 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:01:55,904 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:01:56,067 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-14 08:01:56,317 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:01:56,601 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:01:56,876 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 08:01:57,219 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-14 08:02:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:07,112 INFO L93 Difference]: Finished difference Result 7634 states and 11045 transitions. [2020-10-14 08:02:07,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-10-14 08:02:07,113 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 82 [2020-10-14 08:02:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:07,199 INFO L225 Difference]: With dead ends: 7634 [2020-10-14 08:02:07,199 INFO L226 Difference]: Without dead ends: 7120 [2020-10-14 08:02:07,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7326 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=2317, Invalid=16589, Unknown=0, NotChecked=0, Total=18906 [2020-10-14 08:02:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2020-10-14 08:02:07,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 7003. [2020-10-14 08:02:07,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7003 states. [2020-10-14 08:02:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 9329 transitions. [2020-10-14 08:02:07,844 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 9329 transitions. Word has length 82 [2020-10-14 08:02:07,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:07,845 INFO L479 AbstractCegarLoop]: Abstraction has 7003 states and 9329 transitions. [2020-10-14 08:02:07,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:02:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 9329 transitions. [2020-10-14 08:02:07,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 08:02:07,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:07,858 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] [2020-10-14 08:02:07,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:02:07,859 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:07,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:07,860 INFO L82 PathProgramCache]: Analyzing trace with hash 375315799, now seen corresponding path program 1 times [2020-10-14 08:02:07,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:07,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151544679] [2020-10-14 08:02:07,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:07,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:08,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:08,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 08:02:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:02:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-10-14 08:02:08,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:08,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 08:02:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 08:02:08,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:09,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:09,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:09,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:09,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:02:09,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:09,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:09,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:09,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:09,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:09,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:02:09,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:09,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:02:09,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:09,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:09,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:09,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:09,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:09,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:02:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:09,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:09,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:09,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:09,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:02:09,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:09,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:09,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:02:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:09,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:09,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:09,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:09,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:09,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:09,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:09,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:02:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:09,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:09,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:02:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:09,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:09,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:09,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:09,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:09,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:09,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:09,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:02:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:09,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:09,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:02:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:09,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:09,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:09,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:09,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:09,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:09,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:02:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:09,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 08:02:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:09,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:09,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:09,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:09,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:09,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:09,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:02:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:09,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:09,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:02:09,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151544679] [2020-10-14 08:02:09,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:02:09,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:02:09,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423706653] [2020-10-14 08:02:09,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:02:09,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:09,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:02:09,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:02:09,321 INFO L87 Difference]: Start difference. First operand 7003 states and 9329 transitions. Second operand 10 states. [2020-10-14 08:02:12,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:12,070 INFO L93 Difference]: Finished difference Result 20104 states and 26952 transitions. [2020-10-14 08:02:12,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:02:12,071 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-14 08:02:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:12,156 INFO L225 Difference]: With dead ends: 20104 [2020-10-14 08:02:12,156 INFO L226 Difference]: Without dead ends: 13148 [2020-10-14 08:02:12,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:02:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13148 states. [2020-10-14 08:02:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13148 to 12973. [2020-10-14 08:02:13,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12973 states. [2020-10-14 08:02:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12973 states to 12973 states and 17202 transitions. [2020-10-14 08:02:13,316 INFO L78 Accepts]: Start accepts. Automaton has 12973 states and 17202 transitions. Word has length 82 [2020-10-14 08:02:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:13,316 INFO L479 AbstractCegarLoop]: Abstraction has 12973 states and 17202 transitions. [2020-10-14 08:02:13,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:02:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 12973 states and 17202 transitions. [2020-10-14 08:02:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 08:02:13,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:13,319 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] [2020-10-14 08:02:13,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:02:13,319 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:13,320 INFO L82 PathProgramCache]: Analyzing trace with hash -2047629271, now seen corresponding path program 1 times [2020-10-14 08:02:13,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:13,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774644529] [2020-10-14 08:02:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:13,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:13,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:13,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 08:02:13,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-14 08:02:13,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:13,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 08:02:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:02:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 08:02:13,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:13,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:13,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:13,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:13,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:13,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:02:13,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:13,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:13,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:13,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:13,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:13,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:13,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:13,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:13,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:02:13,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 08:02:13,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:13,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:02:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:02:13,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:14,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:02:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:14,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:14,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:14,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:14,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:14,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:02:14,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:14,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:14,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:14,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:14,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:14,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:02:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:14,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:14,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:14,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:14,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:14,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:02:14,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:14,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:02:14,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:14,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:02:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:14,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:14,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:14,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:14,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:02:14,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:14,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:14,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:14,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:14,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:02:14,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:14,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:02:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:14,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:14,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:14,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:14,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:02:14,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:14,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:02:14,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:14,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:02:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:14,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:14,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:14,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:14,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:14,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:14,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:14,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:02:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:02:14,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:02:14,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774644529] [2020-10-14 08:02:14,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:02:14,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 08:02:14,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021374133] [2020-10-14 08:02:14,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 08:02:14,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:14,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 08:02:14,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:02:14,253 INFO L87 Difference]: Start difference. First operand 12973 states and 17202 transitions. Second operand 16 states. [2020-10-14 08:02:14,629 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 116 [2020-10-14 08:02:15,032 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 08:02:16,168 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 08:02:17,471 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-10-14 08:02:17,771 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-14 08:02:17,971 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-14 08:02:18,443 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-14 08:02:19,509 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-14 08:02:22,099 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-14 08:02:22,500 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-14 08:02:23,373 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-14 08:02:23,851 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-14 08:02:24,674 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-14 08:02:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:27,922 INFO L93 Difference]: Finished difference Result 108148 states and 145240 transitions. [2020-10-14 08:02:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-10-14 08:02:27,923 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 83 [2020-10-14 08:02:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:28,356 INFO L225 Difference]: With dead ends: 108148 [2020-10-14 08:02:28,356 INFO L226 Difference]: Without dead ends: 95338 [2020-10-14 08:02:28,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1826 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1110, Invalid=4440, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 08:02:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95338 states. [2020-10-14 08:02:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95338 to 69381. [2020-10-14 08:02:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69381 states. [2020-10-14 08:02:35,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69381 states to 69381 states and 92474 transitions. [2020-10-14 08:02:35,514 INFO L78 Accepts]: Start accepts. Automaton has 69381 states and 92474 transitions. Word has length 83 [2020-10-14 08:02:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:35,514 INFO L479 AbstractCegarLoop]: Abstraction has 69381 states and 92474 transitions. [2020-10-14 08:02:35,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 08:02:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 69381 states and 92474 transitions. [2020-10-14 08:02:35,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 08:02:35,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:35,517 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] [2020-10-14 08:02:35,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:02:35,517 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:35,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:35,517 INFO L82 PathProgramCache]: Analyzing trace with hash -54134262, now seen corresponding path program 1 times [2020-10-14 08:02:35,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:35,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851483913] [2020-10-14 08:02:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:35,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:35,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:35,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 08:02:35,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-14 08:02:35,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:35,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:35,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:02:35,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 08:02:35,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:02:35,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,032 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 08:02:36,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:36,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:02:36,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:02:36,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:02:36,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:36,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:36,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:02:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:36,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:36,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:36,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:36,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:36,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:02:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:36,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:36,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:02:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:36,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:36,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:36,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:36,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:02:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:36,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:36,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:36,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:36,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:36,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:02:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:36,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:36,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:02:36,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:02:36,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851483913] [2020-10-14 08:02:36,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:02:36,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:02:36,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550269982] [2020-10-14 08:02:36,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:02:36,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:36,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:02:36,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:02:36,258 INFO L87 Difference]: Start difference. First operand 69381 states and 92474 transitions. Second operand 13 states. [2020-10-14 08:02:37,342 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 08:02:37,616 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-14 08:02:43,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:43,589 INFO L93 Difference]: Finished difference Result 92188 states and 129072 transitions. [2020-10-14 08:02:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:02:43,589 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2020-10-14 08:02:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:43,958 INFO L225 Difference]: With dead ends: 92188 [2020-10-14 08:02:43,958 INFO L226 Difference]: Without dead ends: 92186 [2020-10-14 08:02:44,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:02:44,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92186 states. [2020-10-14 08:02:48,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92186 to 79749. [2020-10-14 08:02:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79749 states. [2020-10-14 08:02:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79749 states to 79749 states and 102842 transitions. [2020-10-14 08:02:48,514 INFO L78 Accepts]: Start accepts. Automaton has 79749 states and 102842 transitions. Word has length 84 [2020-10-14 08:02:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:48,515 INFO L479 AbstractCegarLoop]: Abstraction has 79749 states and 102842 transitions. [2020-10-14 08:02:48,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:02:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 79749 states and 102842 transitions. [2020-10-14 08:02:48,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 08:02:48,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:48,518 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] [2020-10-14 08:02:48,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:02:48,518 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:48,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:48,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1100313055, now seen corresponding path program 1 times [2020-10-14 08:02:48,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:48,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105554986] [2020-10-14 08:02:48,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:48,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:48,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:48,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 08:02:48,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:48,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 08:02:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:48,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:02:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 08:02:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:50,288 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 08:02:50,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:50,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:50,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:50,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:50,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:02:50,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:50,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:50,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:50,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:50,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:50,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:50,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:02:50,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:50,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:02:50,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:50,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:02:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:50,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:02:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:50,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:50,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:50,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:50,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:02:50,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:50,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:50,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:50,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:50,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:02:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:50,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:50,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:50,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:50,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:02:50,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:50,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:02:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:50,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:02:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:50,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:50,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:50,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:50,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:02:50,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:50,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:50,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:02:50,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:02:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:50,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:50,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:50,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:50,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:02:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:50,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:50,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:02:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:50,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:50,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:50,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:50,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:02:50,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:50,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:50,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:50,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:02:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:50,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:02:50,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105554986] [2020-10-14 08:02:50,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:02:50,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:02:50,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233071468] [2020-10-14 08:02:50,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:02:50,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:50,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:02:50,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:02:50,587 INFO L87 Difference]: Start difference. First operand 79749 states and 102842 transitions. Second operand 10 states. [2020-10-14 08:02:50,759 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-14 08:02:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:59,440 INFO L93 Difference]: Finished difference Result 235516 states and 305802 transitions. [2020-10-14 08:02:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:02:59,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-14 08:02:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:59,954 INFO L225 Difference]: With dead ends: 235516 [2020-10-14 08:02:59,954 INFO L226 Difference]: Without dead ends: 155930 [2020-10-14 08:03:00,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:03:00,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155930 states. [2020-10-14 08:03:10,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155930 to 154437. [2020-10-14 08:03:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154437 states. [2020-10-14 08:03:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154437 states to 154437 states and 199278 transitions. [2020-10-14 08:03:11,109 INFO L78 Accepts]: Start accepts. Automaton has 154437 states and 199278 transitions. Word has length 85 [2020-10-14 08:03:11,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:03:11,110 INFO L479 AbstractCegarLoop]: Abstraction has 154437 states and 199278 transitions. [2020-10-14 08:03:11,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:03:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 154437 states and 199278 transitions. [2020-10-14 08:03:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 08:03:11,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:03:11,152 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:03:11,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:03:11,153 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:03:11,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:03:11,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1332143050, now seen corresponding path program 1 times [2020-10-14 08:03:11,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:03:11,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289893555] [2020-10-14 08:03:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:03:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:11,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:11,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:13,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:13,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 08:03:13,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:03:13,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2654 [2020-10-14 08:03:13,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:13,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:13,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:03:13,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:03:13,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 08:03:13,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:03:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:03:14,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:14,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:14,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:03:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:03:14,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:03:14,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:03:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:03:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:14,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:03:14,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:03:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:03:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:03:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:03:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:03:14,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:03:14,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:03:14,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:03:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:03:14,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:14,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:03:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:03:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:03:14,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:14,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:03:14,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:03:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:14,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:14,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:03:14,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:03:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:03:14,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:14,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:03:14,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:03:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:14,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:03:14,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:03:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:03:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:03:14,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:14,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:03:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:14,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:14,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:03:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 08:03:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:14,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:14,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:03:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 08:03:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:14,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:14,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:03:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 08:03:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:14,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:14,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:14,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:03:14,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:14,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:14,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:03:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:03:14,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 08:03:14,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289893555] [2020-10-14 08:03:14,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:03:14,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 08:03:14,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699422016] [2020-10-14 08:03:14,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:03:14,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:03:14,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:03:14,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:03:14,789 INFO L87 Difference]: Start difference. First operand 154437 states and 199278 transitions. Second operand 12 states. [2020-10-14 08:03:14,922 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 08:03:30,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:03:30,767 INFO L93 Difference]: Finished difference Result 351802 states and 455271 transitions. [2020-10-14 08:03:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 08:03:30,768 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2020-10-14 08:03:30,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:03:31,471 INFO L225 Difference]: With dead ends: 351802 [2020-10-14 08:03:31,472 INFO L226 Difference]: Without dead ends: 226792 [2020-10-14 08:03:31,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=265, Invalid=791, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 08:03:31,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226792 states. [2020-10-14 08:03:48,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226792 to 224549. [2020-10-14 08:03:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224549 states. [2020-10-14 08:03:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224549 states to 224549 states and 288958 transitions. [2020-10-14 08:03:49,749 INFO L78 Accepts]: Start accepts. Automaton has 224549 states and 288958 transitions. Word has length 129 [2020-10-14 08:03:49,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:03:49,749 INFO L479 AbstractCegarLoop]: Abstraction has 224549 states and 288958 transitions. [2020-10-14 08:03:49,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:03:49,749 INFO L276 IsEmpty]: Start isEmpty. Operand 224549 states and 288958 transitions. [2020-10-14 08:03:49,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 08:03:49,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:03:49,782 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:03:49,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:03:49,782 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:03:49,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:03:49,783 INFO L82 PathProgramCache]: Analyzing trace with hash -211549193, now seen corresponding path program 1 times [2020-10-14 08:03:49,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:03:49,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994139990] [2020-10-14 08:03:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:03:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:49,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:50,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:51,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-14 08:03:58,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:03:58,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8558 [2020-10-14 08:03:58,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:03:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 08:03:58,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:03:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:58,528 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 08:03:58,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:03:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:03:58,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:03:58,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:58,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:58,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:03:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:03:58,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:03:58,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:58,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:58,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:03:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:58,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:03:58,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:03:58,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:03:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:03:58,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:03:58,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:58,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:03:58,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:03:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:03:58,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:03:58,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:03:58,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:58,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:03:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:03:58,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:03:58,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:03:58,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:03:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:58,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:58,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:03:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:03:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:03:58,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:03:58,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:03:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:03:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:58,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:03:58,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:03:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:03:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:03:58,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:03:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:03:58,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:58,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:03:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:58,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 08:03:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:58,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:58,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:03:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 08:03:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:58,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:58,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:03:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:03:58,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-14 08:03:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:58,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:58,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:58,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:03:58,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:58,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:58,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:58,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:58,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:03:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:03:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 08:03:58,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994139990] [2020-10-14 08:03:58,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:03:58,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 08:03:58,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114740087] [2020-10-14 08:03:58,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:03:58,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:03:58,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:03:58,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:03:58,908 INFO L87 Difference]: Start difference. First operand 224549 states and 288958 transitions. Second operand 10 states. [2020-10-14 08:03:59,149 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 08:04:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:04:08,808 INFO L93 Difference]: Finished difference Result 387480 states and 496558 transitions. [2020-10-14 08:04:08,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:04:08,814 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2020-10-14 08:04:08,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:04:09,194 INFO L225 Difference]: With dead ends: 387480 [2020-10-14 08:04:09,195 INFO L226 Difference]: Without dead ends: 163094 [2020-10-14 08:04:10,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:04:10,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163094 states. [2020-10-14 08:04:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163094 to 145172. [2020-10-14 08:04:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145172 states. [2020-10-14 08:04:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145172 states to 145172 states and 182059 transitions. [2020-10-14 08:04:22,581 INFO L78 Accepts]: Start accepts. Automaton has 145172 states and 182059 transitions. Word has length 130 [2020-10-14 08:04:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:04:22,582 INFO L479 AbstractCegarLoop]: Abstraction has 145172 states and 182059 transitions. [2020-10-14 08:04:22,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:04:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 145172 states and 182059 transitions. [2020-10-14 08:04:22,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 08:04:22,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:04:22,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:04:22,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:04:22,609 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:04:22,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:04:22,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1456397347, now seen corresponding path program 1 times [2020-10-14 08:04:22,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:04:22,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942699311] [2020-10-14 08:04:22,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:04:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:22,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:22,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:22,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:24,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:26,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:27,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:27,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-14 08:04:27,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:04:27,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 08:04:27,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:27,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:04:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:04:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 08:04:27,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:04:27,858 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 08:04:27,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:04:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:27,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:27,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:27,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:04:27,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:27,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:04:27,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:27,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:27,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:04:27,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:27,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:04:27,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:04:27,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:04:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:27,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:27,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:27,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 08:04:27,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:04:27,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:27,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 08:04:27,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:04:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:27,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:27,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:04:27,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:04:27,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:27,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:04:27,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:04:27,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:04:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:04:28,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:04:28,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:04:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:04:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:04:28,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:04:28,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:04:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:04:28,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:04:28,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:04:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:04:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:04:28,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:04:28,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:04:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:04:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:04:28,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:04:28,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:04:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:04:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:04:28,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:04:28,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:04:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:04:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:04:28,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:04:28,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:28,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:04:28,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:04:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:04:28,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:04:28,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:04:28,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:04:28,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:04:28,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 08:04:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:04:28,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:04:28,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:04:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:04:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:04:28,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 08:04:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:04:28,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:04:28,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:04:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:04:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:04:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-14 08:04:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:04:28,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:04:28,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:04:28,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:04:28,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:04:28,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:04:28,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:04:28,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:04:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:04:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:04:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:04:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:04:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 08:04:28,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942699311] [2020-10-14 08:04:28,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:04:28,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 08:04:28,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733361143] [2020-10-14 08:04:28,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 08:04:28,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:04:28,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 08:04:28,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:04:28,397 INFO L87 Difference]: Start difference. First operand 145172 states and 182059 transitions. Second operand 16 states. [2020-10-14 08:04:28,631 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-14 08:04:29,361 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-14 08:04:29,781 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-14 08:04:31,360 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2020-10-14 08:04:31,751 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-14 08:04:35,776 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 118