/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:09:39,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:09:39,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:09:39,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:09:39,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:09:39,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:09:39,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:09:39,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:09:39,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:09:39,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:09:39,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:09:39,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:09:39,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:09:39,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:09:39,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:09:39,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:09:39,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:09:39,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:09:39,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:09:39,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:09:39,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:09:39,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:09:39,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:09:39,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:09:39,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:09:39,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:09:39,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:09:39,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:09:39,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:09:39,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:09:39,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:09:39,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:09:39,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:09:39,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:09:39,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:09:39,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:09:39,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:09:39,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:09:39,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:09:39,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:09:39,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:09:39,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:09:39,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:09:39,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:09:39,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:09:39,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:09:39,788 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:09:39,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:09:39,789 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:09:39,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:09:39,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:09:39,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:09:39,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:09:39,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:09:39,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:09:39,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:09:39,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:09:39,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:09:39,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:09:39,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:09:39,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:09:39,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:09:39,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:09:39,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:09:39,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:09:39,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:09:39,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:09:39,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:09:39,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:09:39,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:09:39,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:09:39,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:09:40,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:09:40,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:09:40,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:09:40,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:09:40,364 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:09:40,365 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2020-09-24 18:09:40,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06a28a05f/a011a61cf1944727b6a0a7d06481fcf9/FLAG8da46f00b [2020-09-24 18:09:41,134 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:09:41,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2020-09-24 18:09:41,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06a28a05f/a011a61cf1944727b6a0a7d06481fcf9/FLAG8da46f00b [2020-09-24 18:09:41,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/06a28a05f/a011a61cf1944727b6a0a7d06481fcf9 [2020-09-24 18:09:41,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:09:41,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:09:41,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:41,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:09:41,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:09:41,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:41" (1/1) ... [2020-09-24 18:09:41,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:41, skipping insertion in model container [2020-09-24 18:09:41,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:09:41" (1/1) ... [2020-09-24 18:09:41,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:09:41,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:09:41,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:41,934 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:09:42,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:09:42,061 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:09:42,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42 WrapperNode [2020-09-24 18:09:42,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:09:42,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:09:42,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:09:42,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:09:42,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... [2020-09-24 18:09:42,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... [2020-09-24 18:09:42,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... [2020-09-24 18:09:42,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... [2020-09-24 18:09:42,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... [2020-09-24 18:09:42,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... [2020-09-24 18:09:42,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... [2020-09-24 18:09:42,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:09:42,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:09:42,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:09:42,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:09:42,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:09:42,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:09:42,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:09:42,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:42,252 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:09:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:09:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:09:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:09:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:09:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:09:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:09:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:09:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:09:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:09:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:09:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:09:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:09:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:09:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:09:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:09:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:09:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:09:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:09:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:09:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:09:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:09:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:09:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:09:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:09:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:09:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:09:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:09:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:09:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:09:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:09:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:09:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:09:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:09:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:09:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:09:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:09:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:09:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:09:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:09:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:09:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:09:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:09:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:09:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:09:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:09:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:09:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:09:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:09:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:09:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:09:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:09:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:09:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:09:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:09:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:09:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:09:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:09:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:09:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:09:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:09:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:09:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:09:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:09:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:09:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:09:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:09:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:09:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:09:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:09:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:09:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:09:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:09:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:09:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:09:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:09:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:09:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:09:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:09:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:09:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:09:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:09:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:09:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:09:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:09:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:09:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:09:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:09:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:09:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:09:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:09:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:09:43,637 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:09:43,637 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:09:43,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:43 BoogieIcfgContainer [2020-09-24 18:09:43,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:09:43,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:09:43,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:09:43,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:09:43,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:09:41" (1/3) ... [2020-09-24 18:09:43,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c005fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:43, skipping insertion in model container [2020-09-24 18:09:43,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:09:42" (2/3) ... [2020-09-24 18:09:43,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c005fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:09:43, skipping insertion in model container [2020-09-24 18:09:43,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:09:43" (3/3) ... [2020-09-24 18:09:43,659 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2020-09-24 18:09:43,671 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:09:43,683 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:09:43,707 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:09:43,743 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:09:43,743 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:09:43,743 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:09:43,743 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:09:43,743 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:09:43,744 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:09:43,744 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:09:43,744 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:09:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2020-09-24 18:09:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:09:43,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:43,797 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:43,797 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:43,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:43,805 INFO L82 PathProgramCache]: Analyzing trace with hash 442401887, now seen corresponding path program 1 times [2020-09-24 18:09:43,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:43,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995159556] [2020-09-24 18:09:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:44,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:44,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:45,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:45,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:46,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:09:49,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-24 18:09:49,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:09:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:09:49,577 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:49,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 18:09:49,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:49,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:49,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:49,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:49,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:49,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:09:49,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:49,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:49,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:49,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:49,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:49,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:09:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:49,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:49,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:49,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:49,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:49,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:49,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:09:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:49,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:49,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:09:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:49,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:49,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:49,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:49,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:49,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:49,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:49,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:49,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:49,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995159556] [2020-09-24 18:09:49,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:49,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:09:49,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208561616] [2020-09-24 18:09:49,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:09:49,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:49,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:09:49,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:49,935 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 4 states. [2020-09-24 18:09:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:51,241 INFO L93 Difference]: Finished difference Result 579 states and 678 transitions. [2020-09-24 18:09:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:09:51,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:09:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:51,280 INFO L225 Difference]: With dead ends: 579 [2020-09-24 18:09:51,281 INFO L226 Difference]: Without dead ends: 356 [2020-09-24 18:09:51,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:51,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-09-24 18:09:51,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 308. [2020-09-24 18:09:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-09-24 18:09:51,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 338 transitions. [2020-09-24 18:09:51,430 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 338 transitions. Word has length 160 [2020-09-24 18:09:51,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:51,434 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 338 transitions. [2020-09-24 18:09:51,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:09:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 338 transitions. [2020-09-24 18:09:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:09:51,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:51,451 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:51,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:09:51,452 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:51,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:51,452 INFO L82 PathProgramCache]: Analyzing trace with hash 61425479, now seen corresponding path program 1 times [2020-09-24 18:09:51,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:51,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022414029] [2020-09-24 18:09:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:54,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:56,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:09:56,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 18:09:56,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:09:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 18:09:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:56,858 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:56,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:56,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:57,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 18:09:57,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:09:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:57,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:57,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:57,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:09:57,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:57,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:57,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:09:57,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:57,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:09:57,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:57,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:57,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:09:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:09:57,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:57,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:09:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:09:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:57,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:57,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:09:57,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:57,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:57,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:09:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:57,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:57,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:57,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:57,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:57,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:57,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:57,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:57,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:57,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022414029] [2020-09-24 18:09:57,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:57,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:09:57,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970781338] [2020-09-24 18:09:57,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:09:57,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:57,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:09:57,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:09:57,384 INFO L87 Difference]: Start difference. First operand 308 states and 338 transitions. Second operand 5 states. [2020-09-24 18:09:57,845 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:58,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:58,948 INFO L93 Difference]: Finished difference Result 549 states and 630 transitions. [2020-09-24 18:09:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:09:58,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:09:58,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:58,957 INFO L225 Difference]: With dead ends: 549 [2020-09-24 18:09:58,957 INFO L226 Difference]: Without dead ends: 356 [2020-09-24 18:09:58,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:09:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-09-24 18:09:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 308. [2020-09-24 18:09:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-09-24 18:09:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 337 transitions. [2020-09-24 18:09:59,036 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 337 transitions. Word has length 161 [2020-09-24 18:09:59,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:59,039 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 337 transitions. [2020-09-24 18:09:59,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:09:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 337 transitions. [2020-09-24 18:09:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-24 18:09:59,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:59,048 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:59,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:09:59,049 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:59,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:59,049 INFO L82 PathProgramCache]: Analyzing trace with hash -2117137361, now seen corresponding path program 1 times [2020-09-24 18:09:59,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:59,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163830708] [2020-09-24 18:09:59,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:59,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:03,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:03,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-09-24 18:10:04,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:10:04,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-24 18:10:04,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:10:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 18:10:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:10:04,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:04,483 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:04,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:04,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 18:10:04,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:10:04,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:04,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:04,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:04,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:04,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:04,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:04,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:04,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:04,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:04,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:04,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:04,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:10:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:04,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:04,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:04,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:04,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:10:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 18:10:04,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:10:04,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 18:10:04,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:10:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 18:10:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:10:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:10:04,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:10:04,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:10:04,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:10:04,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:10:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:10:04,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:10:04,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:10:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:10:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:10:04,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:04,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:10:04,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:04,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:04,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:10:04,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 18:10:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:04,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:10:04,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-24 18:10:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:04,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:04,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:04,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:04,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:04,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:04,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:10:04,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163830708] [2020-09-24 18:10:04,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:04,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:10:04,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941782890] [2020-09-24 18:10:04,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:10:04,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:04,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:10:04,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:10:04,989 INFO L87 Difference]: Start difference. First operand 308 states and 337 transitions. Second operand 8 states. [2020-09-24 18:10:05,503 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:10:07,519 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:08,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:08,721 INFO L93 Difference]: Finished difference Result 749 states and 889 transitions. [2020-09-24 18:10:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 18:10:08,721 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 188 [2020-09-24 18:10:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:08,726 INFO L225 Difference]: With dead ends: 749 [2020-09-24 18:10:08,726 INFO L226 Difference]: Without dead ends: 556 [2020-09-24 18:10:08,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:10:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-09-24 18:10:08,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 470. [2020-09-24 18:10:08,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-09-24 18:10:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 522 transitions. [2020-09-24 18:10:08,814 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 522 transitions. Word has length 188 [2020-09-24 18:10:08,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:08,816 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 522 transitions. [2020-09-24 18:10:08,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:10:08,816 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 522 transitions. [2020-09-24 18:10:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 18:10:08,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:08,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:08,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:10:08,819 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:08,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:08,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1253697381, now seen corresponding path program 1 times [2020-09-24 18:10:08,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:08,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777964652] [2020-09-24 18:10:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:08,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:09,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:09,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:10,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:10,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:13,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:13,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:10:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:14,250 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:14,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 18:10:14,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:14,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:14,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:14,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:14,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:14,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:14,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:14,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:14,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:14,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:14,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:10:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:14,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:14,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:10:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:14,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:14,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:10:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 18:10:14,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:10:14,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-24 18:10:14,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:10:14,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:10:14,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:14,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:10:14,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:10:14,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:10:14,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:10:14,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:10:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:14,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:10:14,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:10:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:14,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:14,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 18:10:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:14,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:14,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:14,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 18:10:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:14,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:14,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:14,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:14,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:14,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:14,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:14,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:14,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:10:14,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777964652] [2020-09-24 18:10:14,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:14,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:10:14,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780825235] [2020-09-24 18:10:14,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:10:14,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:14,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:10:14,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:10:14,663 INFO L87 Difference]: Start difference. First operand 470 states and 522 transitions. Second operand 6 states. [2020-09-24 18:10:15,497 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:10:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:16,850 INFO L93 Difference]: Finished difference Result 793 states and 888 transitions. [2020-09-24 18:10:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:10:16,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2020-09-24 18:10:16,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:16,854 INFO L225 Difference]: With dead ends: 793 [2020-09-24 18:10:16,854 INFO L226 Difference]: Without dead ends: 498 [2020-09-24 18:10:16,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:10:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-09-24 18:10:16,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 436. [2020-09-24 18:10:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-09-24 18:10:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 471 transitions. [2020-09-24 18:10:16,904 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 471 transitions. Word has length 203 [2020-09-24 18:10:16,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:16,904 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 471 transitions. [2020-09-24 18:10:16,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:10:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 471 transitions. [2020-09-24 18:10:16,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 18:10:16,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:16,908 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:16,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:10:16,908 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:16,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:16,909 INFO L82 PathProgramCache]: Analyzing trace with hash -491868386, now seen corresponding path program 1 times [2020-09-24 18:10:16,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:16,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029165550] [2020-09-24 18:10:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:17,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:17,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:17,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:17,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:17,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:21,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:21,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 18:10:21,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:10:21,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 18:10:21,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 18:10:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 18:10:21,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,290 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:22,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:22,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 18:10:22,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:22,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:22,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:22,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:22,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:22,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:22,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:22,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:22,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:22,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:22,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:10:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:22,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:22,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:22,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:22,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:10:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 18:10:22,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:10:22,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 18:10:22,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 18:10:22,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:10:22,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:10:22,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 18:10:22,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:22,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:10:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:22,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:10:22,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 18:10:22,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:22,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:10:22,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:22,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:10:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:10:22,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:10:22,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:22,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:10:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:22,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:10:22,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:22,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:22,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:10:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:22,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:22,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:22,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:10:22,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 19 [2020-09-24 18:10:22,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 18:10:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:22,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:22,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:10:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 18:10:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:22,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:22,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:22,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:22,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:10:22,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:10:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:22,962 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:10:22,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029165550] [2020-09-24 18:10:22,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:22,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:10:22,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208366917] [2020-09-24 18:10:22,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:10:22,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:22,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:10:22,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:10:22,964 INFO L87 Difference]: Start difference. First operand 436 states and 471 transitions. Second operand 10 states. [2020-09-24 18:10:23,487 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:10:24,270 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:24,518 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:25,819 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:10:26,096 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:26,429 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:10:26,888 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:27,197 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:10:27,484 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:10:28,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:28,248 INFO L93 Difference]: Finished difference Result 824 states and 926 transitions. [2020-09-24 18:10:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 18:10:28,248 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-24 18:10:28,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:28,252 INFO L225 Difference]: With dead ends: 824 [2020-09-24 18:10:28,252 INFO L226 Difference]: Without dead ends: 503 [2020-09-24 18:10:28,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:10:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-24 18:10:28,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 435. [2020-09-24 18:10:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-09-24 18:10:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 468 transitions. [2020-09-24 18:10:28,315 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 468 transitions. Word has length 212 [2020-09-24 18:10:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:28,315 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 468 transitions. [2020-09-24 18:10:28,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:10:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 468 transitions. [2020-09-24 18:10:28,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 18:10:28,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:28,322 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:28,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:10:28,323 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:28,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:28,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1974370414, now seen corresponding path program 1 times [2020-09-24 18:10:28,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:28,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122799788] [2020-09-24 18:10:28,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:28,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 18:10:29,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-09-24 18:10:29,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-24 18:10:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:29,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,469 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:10:29,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:29,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 18:10:29,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:10:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:29,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:29,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:10:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:29,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:29,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:10:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:29,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:29,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:10:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:10:29,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:29,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:10:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:29,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:29,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:10:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:10:29,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:29,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:29,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:29,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:10:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:10:29,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 18:10:29,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:10:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:29,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:10:29,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 18:10:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 18:10:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:10:29,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 18:10:29,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:10:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:10:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:10:29,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:10:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:10:29,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 18:10:29,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:10:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:10:29,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:10:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:29,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:29,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:29,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:29,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:10:29,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:29,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:29,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:29,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:29,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:10:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:29,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:30,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:30,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:10:30,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:30,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:10:30,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:30,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:30,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:10:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:30,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:30,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:10:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:30,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:30,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:30,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:10:30,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:30,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:30,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:30,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:30,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:10:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:30,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:30,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:30,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:30,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:30,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:30,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:30,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 18:10:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:30,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:30,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:30,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:10:30,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:30,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:10:30,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:30,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:30,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:30,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:30,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:30,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 18:10:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:30,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:30,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:30,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:30,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:30,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:30,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:30,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:30,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:30,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:30,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 18:10:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:30,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:30,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:30,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:10:30,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:30,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:10:30,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:30,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:30,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:10:30,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:30,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:10:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:10:30,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122799788] [2020-09-24 18:10:30,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:30,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:10:30,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48930224] [2020-09-24 18:10:30,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:10:30,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:30,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:10:30,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:10:30,091 INFO L87 Difference]: Start difference. First operand 435 states and 468 transitions. Second operand 10 states.