/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 SingleStatement --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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:09:36,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:09:36,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:09:36,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:09:36,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:09:36,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:09:36,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:09:36,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:09:36,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:09:36,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:09:36,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:09:36,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:09:36,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:09:36,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:09:36,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:09:36,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:09:36,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:09:36,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:09:36,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:09:36,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:09:36,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:09:36,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:09:36,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:09:36,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:09:36,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:09:36,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:09:36,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:09:36,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:09:36,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:09:36,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:09:36,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:09:36,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:09:36,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:09:36,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:09:36,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:09:36,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:09:36,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:09:36,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:09:36,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:09:36,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:09:36,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:09:36,413 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 [2020-09-24 18:09:36,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:09:36,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:09:36,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:09:36,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:09:36,470 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:09:36,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:09:36,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:09:36,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:09:36,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:09:36,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:09:36,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:09:36,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:09:36,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:09:36,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:09:36,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:09:36,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:09:36,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:09:36,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:09:36,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:09:36,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:09:36,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:09:36,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:09:36,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:09:36,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:09:36,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:09:36,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:09:36,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:09:36,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:09:36,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:09:36,478 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 -> SingleStatement 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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=true; [2020-09-24 18:09:36,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:09:36,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:09:36,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:09:36,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:09:36,981 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:09:36,982 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-24 18:09:37,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a75a6b8f7/80d004634f33479498b1e6ac7b8d8eb0/FLAG6c44d3389 [2020-09-24 18:09:37,778 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:09:37,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-24 18:09:37,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a75a6b8f7/80d004634f33479498b1e6ac7b8d8eb0/FLAG6c44d3389 [2020-09-24 18:09:37,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a75a6b8f7/80d004634f33479498b1e6ac7b8d8eb0 [2020-09-24 18:09:37,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:09:37,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:09:37,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:37,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:09:37,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:09:37,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:37" (1/1) ... [2020-09-24 18:09:37,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:37, skipping insertion in model container [2020-09-24 18:09:37,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:37" (1/1) ... [2020-09-24 18:09:37,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:09:38,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:09:38,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:38,580 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:09:38,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:38,715 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:09:38,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38 WrapperNode [2020-09-24 18:09:38,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:38,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:09:38,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:09:38,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:09:38,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (1/1) ... [2020-09-24 18:09:38,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (1/1) ... [2020-09-24 18:09:38,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (1/1) ... [2020-09-24 18:09:38,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (1/1) ... [2020-09-24 18:09:38,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (1/1) ... [2020-09-24 18:09:38,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (1/1) ... [2020-09-24 18:09:38,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (1/1) ... [2020-09-24 18:09:38,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:09:38,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:09:38,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:09:38,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:09:38,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (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 [2020-09-24 18:09:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:09:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:09:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:09:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:09:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:09:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:09:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:09:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:09:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:09:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:09:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:09:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:09:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:09:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:09:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:09:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:09:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:09:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:09:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:09:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:09:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:09:38,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:09:38,916 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:09:38,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:09:38,916 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:09:38,916 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:09:38,916 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:09:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:09:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:09:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:09:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:09:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:09:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:09:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:09:38,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:09:38,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:09:38,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:09:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:09:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:09:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:09:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:09:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:09:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:09:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:09:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:09:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:09:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:09:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:09:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:09:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:09:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:09:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:09:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:09:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:09:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:09:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:09:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:09:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:09:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:09:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:09:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:09:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:09:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:09:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:09:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:09:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:09:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:09:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:09:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:09:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:09:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:09:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:09:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:09:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:09:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:09:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:09:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:09:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:09:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:09:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:09:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:09:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:09:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:09:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:09:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:09:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:09:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:09:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:09:40,174 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:09:40,175 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:09:40,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:40 BoogieIcfgContainer [2020-09-24 18:09:40,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:09:40,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:09:40,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:09:40,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:09:40,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:09:37" (1/3) ... [2020-09-24 18:09:40,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdda997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:40, skipping insertion in model container [2020-09-24 18:09:40,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:38" (2/3) ... [2020-09-24 18:09:40,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdda997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:40, skipping insertion in model container [2020-09-24 18:09:40,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:40" (3/3) ... [2020-09-24 18:09:40,192 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2020-09-24 18:09:40,204 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:09:40,216 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:09:40,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:09:40,273 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:09:40,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:09:40,274 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:09:40,274 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:09:40,274 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:09:40,274 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:09:40,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:09:40,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:09:40,304 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-09-24 18:09:40,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:09:40,324 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:40,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:40,326 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:40,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1647532489, now seen corresponding path program 1 times [2020-09-24 18:09:40,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:40,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770440111] [2020-09-24 18:09:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:42,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:42,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:45,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:45,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:45,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:09:45,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:45,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-24 18:09:45,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:09:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:45,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:09:46,279 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:46,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:46,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 18:09:46,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:46,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:46,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:09:46,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:46,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:46,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:46,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:46,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:46,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:46,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:46,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:46,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:46,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:46,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:46,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:46,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:46,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:46,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:09:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:46,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:46,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:46,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:46,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:46,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:46,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:09:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:46,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:46,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:46,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:46,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:09:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:46,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:46,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:46,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:46,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:46,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:46,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:09:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:46,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770440111] [2020-09-24 18:09:46,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:46,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:09:46,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835884582] [2020-09-24 18:09:46,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:09:46,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:46,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:09:46,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:46,766 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 4 states. [2020-09-24 18:09:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:48,374 INFO L93 Difference]: Finished difference Result 578 states and 674 transitions. [2020-09-24 18:09:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:09:48,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:09:48,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:48,412 INFO L225 Difference]: With dead ends: 578 [2020-09-24 18:09:48,412 INFO L226 Difference]: Without dead ends: 357 [2020-09-24 18:09:48,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-24 18:09:48,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 306. [2020-09-24 18:09:48,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-09-24 18:09:48,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 333 transitions. [2020-09-24 18:09:48,610 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 333 transitions. Word has length 160 [2020-09-24 18:09:48,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:48,613 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 333 transitions. [2020-09-24 18:09:48,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:09:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 333 transitions. [2020-09-24 18:09:48,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:09:48,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:48,627 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:48,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:09:48,628 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:48,628 INFO L82 PathProgramCache]: Analyzing trace with hash -620168395, now seen corresponding path program 1 times [2020-09-24 18:09:48,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:48,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419541008] [2020-09-24 18:09:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:48,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:50,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:50,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:51,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:53,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:53,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:09:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 18:09:53,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:09:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:09:53,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,131 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:54,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:09:54,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:54,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:54,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:54,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:54,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:09:54,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:54,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:54,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:09:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:54,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:54,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:54,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:09:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:54,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:54,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:54,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:54,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:54,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:54,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419541008] [2020-09-24 18:09:54,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:54,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:09:54,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433243129] [2020-09-24 18:09:54,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:09:54,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:54,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:09:54,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:09:54,388 INFO L87 Difference]: Start difference. First operand 306 states and 333 transitions. Second operand 5 states. [2020-09-24 18:09:55,111 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:56,339 INFO L93 Difference]: Finished difference Result 497 states and 558 transitions. [2020-09-24 18:09:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:09:56,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:09:56,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:56,343 INFO L225 Difference]: With dead ends: 497 [2020-09-24 18:09:56,343 INFO L226 Difference]: Without dead ends: 346 [2020-09-24 18:09:56,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:09:56,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-24 18:09:56,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 296. [2020-09-24 18:09:56,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-24 18:09:56,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 320 transitions. [2020-09-24 18:09:56,392 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 320 transitions. Word has length 161 [2020-09-24 18:09:56,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:56,393 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 320 transitions. [2020-09-24 18:09:56,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:09:56,393 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 320 transitions. [2020-09-24 18:09:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:09:56,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:56,396 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:56,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:09:56,396 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:56,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1530155702, now seen corresponding path program 1 times [2020-09-24 18:09:56,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:56,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298952331] [2020-09-24 18:09:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:58,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:10:01,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:10:01,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 18:10:01,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:01,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:10:01,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:10:01,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:01,772 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:01,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 18:10:01,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:01,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:01,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:01,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:01,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:01,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:10:01,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:01,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:01,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:01,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:01,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:01,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:01,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:01,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:01,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:01,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:01,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:01,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:10:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:02,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:02,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:02,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:02,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:10:02,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:10:02,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:02,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:10:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:02,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:02,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:02,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:02,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:02,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:10:02,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:02,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:10:02,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:02,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:02,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:02,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:02,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:02,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:02,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:02,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:02,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:02,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:02,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:02,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:10:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:02,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:02,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:02,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:02,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:02,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:02,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:02,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:02,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:02,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:02,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:02,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:10:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:02,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:02,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:02,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:02,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:02,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:10:02,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298952331] [2020-09-24 18:10:02,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:02,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:10:02,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376501867] [2020-09-24 18:10:02,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:10:02,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:02,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:10:02,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:10:02,123 INFO L87 Difference]: Start difference. First operand 296 states and 320 transitions. Second operand 6 states. [2020-09-24 18:10:02,833 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:10:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:05,365 INFO L93 Difference]: Finished difference Result 740 states and 850 transitions. [2020-09-24 18:10:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:10:05,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:10:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:05,371 INFO L225 Difference]: With dead ends: 740 [2020-09-24 18:10:05,372 INFO L226 Difference]: Without dead ends: 559 [2020-09-24 18:10:05,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:10:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-09-24 18:10:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 467. [2020-09-24 18:10:05,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-09-24 18:10:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 516 transitions. [2020-09-24 18:10:05,447 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 516 transitions. Word has length 174 [2020-09-24 18:10:05,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:05,448 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 516 transitions. [2020-09-24 18:10:05,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:10:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 516 transitions. [2020-09-24 18:10:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-24 18:10:05,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:05,452 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:05,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:10:05,452 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:05,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:05,453 INFO L82 PathProgramCache]: Analyzing trace with hash -2058506933, now seen corresponding path program 1 times [2020-09-24 18:10:05,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:05,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901714479] [2020-09-24 18:10:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:05,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:05,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:06,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:08,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:10,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:10,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 18:10:10,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:10:10,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 18:10:10,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 18:10:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:10:10,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:10,936 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:10,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:10,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:11,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 18:10:11,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:11,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:11,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:11,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:10:11,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:11,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:11,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:11,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:11,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 18:10:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:10:11,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:11,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:10:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:11,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:11,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:11,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 18:10:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:11,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:10:11,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 18:10:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:11,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:11,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:11,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:11,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:10:11,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:11,277 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:10:11,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901714479] [2020-09-24 18:10:11,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:11,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:10:11,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966678001] [2020-09-24 18:10:11,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:10:11,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:11,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:10:11,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:10:11,282 INFO L87 Difference]: Start difference. First operand 467 states and 516 transitions. Second operand 10 states. [2020-09-24 18:10:11,844 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:10:12,929 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:10:13,262 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:10:14,730 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:10:15,060 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:15,440 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:16,188 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:16,549 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 18:10:16,866 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 18:10:17,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:17,585 INFO L93 Difference]: Finished difference Result 1094 states and 1295 transitions. [2020-09-24 18:10:17,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 18:10:17,585 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-24 18:10:17,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:17,593 INFO L225 Difference]: With dead ends: 1094 [2020-09-24 18:10:17,594 INFO L226 Difference]: Without dead ends: 742 [2020-09-24 18:10:17,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:10:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-09-24 18:10:17,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 655. [2020-09-24 18:10:17,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-09-24 18:10:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 734 transitions. [2020-09-24 18:10:17,687 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 734 transitions. Word has length 179 [2020-09-24 18:10:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:17,687 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 734 transitions. [2020-09-24 18:10:17,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:10:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 734 transitions. [2020-09-24 18:10:17,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 18:10:17,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:17,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:17,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:10:17,692 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:17,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:17,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1993362504, now seen corresponding path program 1 times [2020-09-24 18:10:17,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:17,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932330401] [2020-09-24 18:10:17,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:17,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 18:10:18,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-09-24 18:10:18,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:18,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 18:10:18,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:18,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,791 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:18,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 18:10:18,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:18,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:18,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:18,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:18,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:18,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:18,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:18,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:18,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:18,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:18,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:18,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:10:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:18,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:18,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:10:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:18,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:18,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:18,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:18,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:18,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:18,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:18,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:10:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:18,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:10:19,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 18:10:19,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 18:10:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:10:19,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 18:10:19,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:10:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:10:19,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 18:10:19,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:10:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:10:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:19,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:19,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:19,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:10:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:10:19,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:10:19,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:10:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:10:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:10:19,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:19,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:19,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:10:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:19,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:19,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 18:10:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:19,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:19,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 18:10:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:19,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:19,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 18:10:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:19,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:19,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:19,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:19,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:19,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:19,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:19,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:10:19,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932330401] [2020-09-24 18:10:19,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:19,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:10:19,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493629027] [2020-09-24 18:10:19,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:10:19,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:19,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:10:19,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:10:19,450 INFO L87 Difference]: Start difference. First operand 655 states and 734 transitions. Second operand 11 states. [2020-09-24 18:10:21,296 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:21,623 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:10:21,976 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 18:10:22,316 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:22,652 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 18:10:22,972 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:24,344 INFO L93 Difference]: Finished difference Result 1384 states and 1668 transitions. [2020-09-24 18:10:24,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 18:10:24,345 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-09-24 18:10:24,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:24,351 INFO L225 Difference]: With dead ends: 1384 [2020-09-24 18:10:24,351 INFO L226 Difference]: Without dead ends: 844 [2020-09-24 18:10:24,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 18:10:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-09-24 18:10:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 674. [2020-09-24 18:10:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-09-24 18:10:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 754 transitions. [2020-09-24 18:10:24,463 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 754 transitions. Word has length 234 [2020-09-24 18:10:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:24,464 INFO L479 AbstractCegarLoop]: Abstraction has 674 states and 754 transitions. [2020-09-24 18:10:24,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:10:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 754 transitions. [2020-09-24 18:10:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 18:10:24,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:24,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:24,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:10:24,469 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:24,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:24,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1325616104, now seen corresponding path program 1 times [2020-09-24 18:10:24,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:24,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744526181] [2020-09-24 18:10:24,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:24,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 18:10:25,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-09-24 18:10:25,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 18:10:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:10:25,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:25,658 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:25,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:25,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 18:10:25,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:25,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:25,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:25,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:25,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:25,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:25,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:25,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:25,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:10:25,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:25,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:25,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:25,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:25,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:25,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:25,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:10:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:25,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:25,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:25,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:10:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:25,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:25,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:25,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:25,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:25,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:25,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:25,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:10:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:25,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:25,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:25,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:10:25,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 18:10:25,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 18:10:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:10:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:25,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:10:26,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 18:10:26,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:26,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:10:26,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:10:26,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:10:26,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 18:10:26,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:10:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:10:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:10:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:26,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:10:26,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:10:26,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:26,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:26,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:10:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:10:26,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:10:26,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:10:26,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:26,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:10:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:10:26,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:26,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:26,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:10:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:26,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:26,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 18:10:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:26,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:26,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 18:10:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:26,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:26,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:26,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 18:10:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:26,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:26,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:26,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:26,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:26,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:26,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:10:26,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744526181] [2020-09-24 18:10:26,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:26,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:10:26,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281943705] [2020-09-24 18:10:26,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:10:26,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:26,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:10:26,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:10:26,291 INFO L87 Difference]: Start difference. First operand 674 states and 754 transitions. Second operand 10 states.