/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=SHALLOWEST --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_spec4_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:38:48,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:38:48,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:38:48,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:38:48,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:38:48,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:38:48,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:38:48,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:38:48,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:38:48,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:38:48,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:38:48,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:38:48,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:38:48,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:38:48,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:38:48,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:38:48,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:38:48,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:38:48,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:38:48,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:38:48,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:38:48,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:38:48,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:38:48,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:38:48,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:38:48,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:38:48,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:38:48,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:38:48,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:38:48,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:38:48,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:38:48,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:38:48,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:38:48,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:38:48,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:38:48,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:38:48,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:38:48,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:38:48,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:38:48,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:38:48,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:38:48,747 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 23:38:48,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:38:48,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:38:48,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:38:48,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:38:48,776 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:38:48,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:38:48,776 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:38:48,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:38:48,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:38:48,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:38:48,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:38:48,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:38:48,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:38:48,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:38:48,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:38:48,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:38:48,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:38:48,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:38:48,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:38:48,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:38:48,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:38:48,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:38:48,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:38:48,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:38:48,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:38:48,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:38:48,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:38:48,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:38:48,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:38:48,781 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:38:49,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:38:49,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:38:49,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:38:49,277 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:38:49,277 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:38:49,278 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-24 23:38:49,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b41cff2a/7acbd15e1a424539a60cfd86bdfc6282/FLAGe709a20d1 [2020-09-24 23:38:49,996 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:38:49,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-09-24 23:38:50,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b41cff2a/7acbd15e1a424539a60cfd86bdfc6282/FLAGe709a20d1 [2020-09-24 23:38:50,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b41cff2a/7acbd15e1a424539a60cfd86bdfc6282 [2020-09-24 23:38:50,285 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:38:50,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:38:50,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:38:50,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:38:50,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:38:50,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:38:50" (1/1) ... [2020-09-24 23:38:50,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:50, skipping insertion in model container [2020-09-24 23:38:50,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:38:50" (1/1) ... [2020-09-24 23:38:50,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:38:50,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:38:50,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:38:50,929 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:38:51,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:38:51,115 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:38:51,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51 WrapperNode [2020-09-24 23:38:51,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:38:51,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:38:51,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:38:51,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:38:51,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (1/1) ... [2020-09-24 23:38:51,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (1/1) ... [2020-09-24 23:38:51,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (1/1) ... [2020-09-24 23:38:51,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (1/1) ... [2020-09-24 23:38:51,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (1/1) ... [2020-09-24 23:38:51,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (1/1) ... [2020-09-24 23:38:51,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (1/1) ... [2020-09-24 23:38:51,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:38:51,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:38:51,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:38:51,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:38:51,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (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 23:38:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:38:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:38:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:38:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:38:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:38:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:38:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:38:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:38:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:38:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:38:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:38:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:38:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:38:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:38:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:38:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:38:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:38:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:38:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:38:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:38:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:38:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:38:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:38:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:38:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:38:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:38:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:38:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:38:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:38:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:38:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:38:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:38:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:38:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:38:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:38:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:38:51,306 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:38:51,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:38:51,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:38:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:38:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:38:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:38:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:38:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:38:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:38:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:38:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:38:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:38:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:38:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:38:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:38:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:38:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:38:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:38:51,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:38:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:38:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:38:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:38:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:38:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:38:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:38:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:38:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:38:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:38:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:38:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:38:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:38:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:38:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:38:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:38:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:38:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:38:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:38:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:38:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:38:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:38:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:38:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:38:52,494 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:38:52,494 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:38:52,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:38:52 BoogieIcfgContainer [2020-09-24 23:38:52,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:38:52,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:38:52,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:38:52,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:38:52,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:38:50" (1/3) ... [2020-09-24 23:38:52,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:38:52, skipping insertion in model container [2020-09-24 23:38:52,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:51" (2/3) ... [2020-09-24 23:38:52,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef51cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:38:52, skipping insertion in model container [2020-09-24 23:38:52,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:38:52" (3/3) ... [2020-09-24 23:38:52,511 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-09-24 23:38:52,523 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:38:52,534 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:38:52,557 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:38:52,587 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:38:52,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:38:52,588 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:38:52,588 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:38:52,588 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:38:52,588 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:38:52,588 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:38:52,588 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:38:52,616 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-24 23:38:52,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:38:52,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:52,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:38:52,637 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:52,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1206638140, now seen corresponding path program 1 times [2020-09-24 23:38:52,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:52,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821650864] [2020-09-24 23:38:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:53,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:53,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:55,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:58,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:58,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:38:58,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:38:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-24 23:38:58,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:58,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:38:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:38:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 23:38:58,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:38:58,573 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:58,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:58,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:58,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:58,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-24 23:38:58,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:38:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:59,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:59,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:59,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:59,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:59,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:59,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:59,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:59,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:59,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:59,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:59,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:59,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:59,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:59,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:59,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:59,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:59,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:38:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:59,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:59,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:59,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:59,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:59,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:59,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:59,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:38:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:59,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:59,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:59,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:59,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:38:59,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:38:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:59,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:59,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:59,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:59,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:59,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:59,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:38:59,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821650864] [2020-09-24 23:38:59,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:59,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:38:59,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773591684] [2020-09-24 23:38:59,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:38:59,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:59,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:38:59,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:38:59,262 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2020-09-24 23:38:59,896 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:02,062 INFO L93 Difference]: Finished difference Result 674 states and 817 transitions. [2020-09-24 23:39:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:39:02,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 23:39:02,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:02,087 INFO L225 Difference]: With dead ends: 674 [2020-09-24 23:39:02,087 INFO L226 Difference]: Without dead ends: 473 [2020-09-24 23:39:02,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:39:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-24 23:39:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 406. [2020-09-24 23:39:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-24 23:39:02,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 453 transitions. [2020-09-24 23:39:02,290 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 453 transitions. Word has length 142 [2020-09-24 23:39:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:02,292 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 453 transitions. [2020-09-24 23:39:02,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:39:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 453 transitions. [2020-09-24 23:39:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 23:39:02,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:02,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:02,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:39:02,314 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:02,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:02,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1285534498, now seen corresponding path program 1 times [2020-09-24 23:39:02,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:02,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125781616] [2020-09-24 23:39:02,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:02,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:02,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:02,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:07,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:07,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 23:39:07,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:07,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 23:39:07,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:07,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:39:07,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:39:07,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:39:07,748 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:07,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:07,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:08,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 23:39:08,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:39:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:08,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:08,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:08,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:08,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:08,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:08,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:08,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:08,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:08,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:08,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:08,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:08,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:08,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:08,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:39:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:39:08,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:08,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:39:08,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:39:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:39:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:08,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:39:08,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:39:08,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:39:08,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:08,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:08,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:08,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:08,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:08,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:08,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:08,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:39:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:08,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:08,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:08,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:08,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:08,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:08,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:39:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:08,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:08,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:08,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:08,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:08,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:08,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:08,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:08,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:08,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:08,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125781616] [2020-09-24 23:39:08,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:08,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:39:08,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681748559] [2020-09-24 23:39:08,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:39:08,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:08,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:39:08,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:39:08,228 INFO L87 Difference]: Start difference. First operand 406 states and 453 transitions. Second operand 6 states. [2020-09-24 23:39:08,723 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:10,238 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:11,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:11,681 INFO L93 Difference]: Finished difference Result 1096 states and 1360 transitions. [2020-09-24 23:39:11,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:39:11,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-24 23:39:11,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:11,692 INFO L225 Difference]: With dead ends: 1096 [2020-09-24 23:39:11,692 INFO L226 Difference]: Without dead ends: 800 [2020-09-24 23:39:11,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:39:11,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-09-24 23:39:11,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 657. [2020-09-24 23:39:11,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-24 23:39:11,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 751 transitions. [2020-09-24 23:39:11,801 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 751 transitions. Word has length 156 [2020-09-24 23:39:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:11,802 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 751 transitions. [2020-09-24 23:39:11,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:39:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 751 transitions. [2020-09-24 23:39:11,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 23:39:11,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:11,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:11,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:39:11,806 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:11,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:11,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1856383956, now seen corresponding path program 1 times [2020-09-24 23:39:11,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:11,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463087002] [2020-09-24 23:39:11,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:11,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:12,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:13,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:15,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:16,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:16,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 23:39:16,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:16,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 23:39:16,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:39:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 23:39:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,274 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:17,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:17,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 23:39:17,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:39:17,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:17,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:17,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:17,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:17,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:17,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:17,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:17,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:17,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:17,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:17,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:17,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:17,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:17,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:17,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:17,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:17,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:17,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:17,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 23:39:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:39:17,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:17,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:39:17,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:39:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:39:17,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 23:39:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:17,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:17,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:17,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:17,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:39:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:17,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:17,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:17,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:17,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:17,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:39:17,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:17,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:17,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463087002] [2020-09-24 23:39:17,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:17,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:39:17,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656974228] [2020-09-24 23:39:17,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:39:17,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:17,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:39:17,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:39:17,766 INFO L87 Difference]: Start difference. First operand 657 states and 751 transitions. Second operand 10 states. [2020-09-24 23:39:18,235 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:19,653 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:39:20,004 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:39:20,384 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:20,721 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:39:21,048 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:21,554 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:21,861 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:22,261 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:23,652 INFO L93 Difference]: Finished difference Result 787 states and 940 transitions. [2020-09-24 23:39:23,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:39:23,653 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 23:39:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:23,659 INFO L225 Difference]: With dead ends: 787 [2020-09-24 23:39:23,659 INFO L226 Difference]: Without dead ends: 784 [2020-09-24 23:39:23,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:39:23,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-09-24 23:39:23,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 657. [2020-09-24 23:39:23,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-24 23:39:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 749 transitions. [2020-09-24 23:39:23,757 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 749 transitions. Word has length 161 [2020-09-24 23:39:23,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:23,758 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 749 transitions. [2020-09-24 23:39:23,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:39:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 749 transitions. [2020-09-24 23:39:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 23:39:23,762 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:23,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:39:23,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:39:23,763 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:23,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:23,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1232833977, now seen corresponding path program 1 times [2020-09-24 23:39:23,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:23,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366357662] [2020-09-24 23:39:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:25,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:28,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:28,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 23:39:28,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:39:28,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 23:39:28,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:39:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 23:39:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,259 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:29,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:29,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-24 23:39:29,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:39:29,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:29,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:29,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:29,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:29,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:29,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:39:29,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:29,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:29,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:29,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:29,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:29,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:29,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:29,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:29,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:29,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:39:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:39:29,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:29,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 23:39:29,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 23:39:29,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:39:29,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:29,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 23:39:29,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:29,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:39:29,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:39:29,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:29,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:39:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:39:29,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:29,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:39:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:39:29,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:29,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 23:39:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:29,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:39:29,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:29,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:29,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:29,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 23:39:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:29,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:29,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:29,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:29,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:29,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:29,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:29,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:29,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:29,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:29,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:29,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366357662] [2020-09-24 23:39:29,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:29,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:39:29,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019083443] [2020-09-24 23:39:29,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:39:29,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:29,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:39:29,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:39:29,994 INFO L87 Difference]: Start difference. First operand 657 states and 749 transitions. Second operand 10 states. [2020-09-24 23:39:30,544 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:31,628 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:31,898 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:32,234 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:32,553 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:39:32,859 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:33,888 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:34,200 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:34,601 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:35,960 INFO L93 Difference]: Finished difference Result 1690 states and 2143 transitions. [2020-09-24 23:39:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:39:35,961 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-09-24 23:39:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:35,970 INFO L225 Difference]: With dead ends: 1690 [2020-09-24 23:39:35,970 INFO L226 Difference]: Without dead ends: 1143 [2020-09-24 23:39:35,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:39:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2020-09-24 23:39:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1023. [2020-09-24 23:39:36,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-09-24 23:39:36,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1241 transitions. [2020-09-24 23:39:36,099 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1241 transitions. Word has length 181 [2020-09-24 23:39:36,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:36,099 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1241 transitions. [2020-09-24 23:39:36,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:39:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1241 transitions. [2020-09-24 23:39:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-24 23:39:36,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:36,105 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:36,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:39:36,105 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:36,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1417296954, now seen corresponding path program 1 times [2020-09-24 23:39:36,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:36,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479348258] [2020-09-24 23:39:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:36,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:36,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:36,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:37,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking...