/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:49:53,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:49:53,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:49:53,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:49:53,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:49:53,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:49:53,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:49:53,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:49:53,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:49:53,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:49:53,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:49:53,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:49:53,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:49:53,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:49:53,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:49:53,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:49:53,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:49:53,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:49:53,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:49:53,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:49:53,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:49:53,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:49:53,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:49:53,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:49:53,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:49:53,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:49:53,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:49:53,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:49:53,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:49:53,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:49:53,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:49:53,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:49:53,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:49:53,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:49:53,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:49:53,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:49:53,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:49:53,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:49:53,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:49:53,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:49:53,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:49:53,109 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 16:49:53,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:49:53,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:49:53,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:49:53,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:49:53,173 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:49:53,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:49:53,174 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:49:53,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:49:53,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:49:53,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:49:53,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:49:53,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:49:53,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:49:53,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:49:53,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:49:53,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:49:53,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:49:53,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:49:53,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:49:53,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:49:53,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:49:53,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:49:53,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:49:53,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:49:53,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:49:53,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:49:53,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:49:53,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:49:53,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:49:53,180 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;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;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;log-additional-information=true; [2020-09-24 16:49:53,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:49:53,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:49:53,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:49:53,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:49:53,695 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:49:53,697 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-24 16:49:53,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/571e108fa/718431d21afb4483aa4312b7bd48a3e6/FLAG3a1a0020c [2020-09-24 16:49:54,386 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:49:54,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-24 16:49:54,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/571e108fa/718431d21afb4483aa4312b7bd48a3e6/FLAG3a1a0020c [2020-09-24 16:49:54,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/571e108fa/718431d21afb4483aa4312b7bd48a3e6 [2020-09-24 16:49:54,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:49:54,681 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:49:54,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:54,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:49:54,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:49:54,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:54" (1/1) ... [2020-09-24 16:49:54,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:54, skipping insertion in model container [2020-09-24 16:49:54,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:54" (1/1) ... [2020-09-24 16:49:54,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:49:54,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:49:55,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:55,171 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:49:55,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:55,402 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:49:55,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55 WrapperNode [2020-09-24 16:49:55,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:55,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:49:55,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:49:55,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:49:55,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (1/1) ... [2020-09-24 16:49:55,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (1/1) ... [2020-09-24 16:49:55,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (1/1) ... [2020-09-24 16:49:55,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (1/1) ... [2020-09-24 16:49:55,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (1/1) ... [2020-09-24 16:49:55,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (1/1) ... [2020-09-24 16:49:55,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (1/1) ... [2020-09-24 16:49:55,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:49:55,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:49:55,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:49:55,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:49:55,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (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 16:49:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:49:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:49:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:49:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:49:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:49:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:49:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:49:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:49:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:49:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:49:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:49:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:49:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:49:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:49:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:49:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:49:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:49:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:49:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:49:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:49:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:49:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:49:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:49:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:49:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:49:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:49:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:49:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:49:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:49:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:49:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:49:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:49:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:49:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:49:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:49:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:49:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:49:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:49:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:49:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:49:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:49:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:49:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:49:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:49:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:49:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:49:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:49:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:49:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:49:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:49:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:49:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:49:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:49:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:49:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:49:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:49:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:49:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:49:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:49:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:49:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:49:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:49:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:49:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:49:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:49:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:49:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:49:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:49:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:49:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:49:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:49:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:49:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:49:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:49:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:49:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:49:56,926 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:49:56,927 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:49:56,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:56 BoogieIcfgContainer [2020-09-24 16:49:56,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:49:56,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:49:56,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:49:56,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:49:56,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:49:54" (1/3) ... [2020-09-24 16:49:56,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155fd645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:56, skipping insertion in model container [2020-09-24 16:49:56,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:55" (2/3) ... [2020-09-24 16:49:56,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155fd645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:56, skipping insertion in model container [2020-09-24 16:49:56,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:56" (3/3) ... [2020-09-24 16:49:56,945 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-09-24 16:49:56,957 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:49:56,970 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:49:56,993 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:49:57,026 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:49:57,026 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:49:57,026 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:49:57,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:49:57,027 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:49:57,027 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:49:57,027 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:49:57,027 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:49:57,057 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-24 16:49:57,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 16:49:57,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:57,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:49:57,078 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:57,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:57,084 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-09-24 16:49:57,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:57,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882357551] [2020-09-24 16:49:57,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:57,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:57,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:59,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:03,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:03,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:50:03,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:50:03,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5711 [2020-09-24 16:50:03,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 16:50:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 16:50:03,715 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:03,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:03,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:03,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:03,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:03,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 16:50:03,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:03,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:03,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 16:50:03,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:03,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:03,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:03,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:03,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:03,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:03,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:03,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:03,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:03,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:03,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:03,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:03,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:03,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:03,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:03,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:50:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:04,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:04,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:04,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:04,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:04,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:50:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:50:04,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:04,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:04,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:50:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:04,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:04,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:50:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:04,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:04,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:04,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:04,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:50:04,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882357551] [2020-09-24 16:50:04,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:04,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:50:04,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737004830] [2020-09-24 16:50:04,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:50:04,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:04,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:50:04,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:50:04,143 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-24 16:50:05,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:05,556 INFO L93 Difference]: Finished difference Result 427 states and 514 transitions. [2020-09-24 16:50:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:50:05,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 16:50:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:05,580 INFO L225 Difference]: With dead ends: 427 [2020-09-24 16:50:05,581 INFO L226 Difference]: Without dead ends: 271 [2020-09-24 16:50:05,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:50:05,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-24 16:50:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-09-24 16:50:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-24 16:50:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions. [2020-09-24 16:50:05,764 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153 [2020-09-24 16:50:05,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:05,765 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 250 transitions. [2020-09-24 16:50:05,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:50:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions. [2020-09-24 16:50:05,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 16:50:05,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:05,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:50:05,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:50:05,772 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:05,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:05,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1482403721, now seen corresponding path program 1 times [2020-09-24 16:50:05,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:05,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072776529] [2020-09-24 16:50:05,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:07,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:12,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:12,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 16:50:12,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:50:12,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7010 [2020-09-24 16:50:12,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:12,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:50:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:50:12,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:13,194 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:13,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:13,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 16:50:13,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:13,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:13,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:13,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:13,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:13,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:13,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:13,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:13,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:13,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:13,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:13,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:13,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:13,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 16:50:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:13,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:13,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:13,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:13,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:50:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:13,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:13,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:13,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 16:50:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:13,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:13,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:13,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:13,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:13,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:13,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:13,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:13,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:13,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:50:13,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072776529] [2020-09-24 16:50:13,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:13,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:50:13,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54822934] [2020-09-24 16:50:13,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:50:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:13,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:50:13,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:50:13,470 INFO L87 Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 4 states. [2020-09-24 16:50:14,120 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:50:14,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:14,885 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2020-09-24 16:50:14,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:50:14,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 16:50:14,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:14,903 INFO L225 Difference]: With dead ends: 338 [2020-09-24 16:50:14,903 INFO L226 Difference]: Without dead ends: 254 [2020-09-24 16:50:14,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:50:14,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-24 16:50:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-09-24 16:50:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-24 16:50:14,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2020-09-24 16:50:14,976 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 154 [2020-09-24 16:50:14,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:14,978 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 237 transitions. [2020-09-24 16:50:14,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:50:14,979 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 237 transitions. [2020-09-24 16:50:14,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 16:50:14,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:14,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:50:14,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:50:14,988 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:14,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:14,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1724777335, now seen corresponding path program 1 times [2020-09-24 16:50:14,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:14,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048183646] [2020-09-24 16:50:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:15,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:15,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:18,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:18,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 16:50:18,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:50:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3633 [2020-09-24 16:50:18,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:50:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 16:50:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 16:50:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:19,062 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:19,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:19,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 16:50:19,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 16:50:19,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:19,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:19,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:19,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:19,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:19,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:19,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:19,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:19,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:19,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:19,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:19,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:50:19,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:19,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:19,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:19,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:19,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:19,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:19,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:19,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:50:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:19,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:19,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:19,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:50:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:19,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:19,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:19,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:19,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 16:50:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:19,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:19,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:19,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:19,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:19,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:19,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:19,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:19,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:19,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:50:19,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048183646] [2020-09-24 16:50:19,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:19,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:50:19,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161951370] [2020-09-24 16:50:19,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:50:19,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:19,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:50:19,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:50:19,401 INFO L87 Difference]: Start difference. First operand 220 states and 237 transitions. Second operand 4 states. [2020-09-24 16:50:19,920 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:21,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:21,412 INFO L93 Difference]: Finished difference Result 484 states and 556 transitions. [2020-09-24 16:50:21,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:50:21,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 16:50:21,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:21,418 INFO L225 Difference]: With dead ends: 484 [2020-09-24 16:50:21,418 INFO L226 Difference]: Without dead ends: 374 [2020-09-24 16:50:21,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:50:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-09-24 16:50:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 324. [2020-09-24 16:50:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-09-24 16:50:21,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 359 transitions. [2020-09-24 16:50:21,518 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 359 transitions. Word has length 163 [2020-09-24 16:50:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:21,519 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 359 transitions. [2020-09-24 16:50:21,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:50:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 359 transitions. [2020-09-24 16:50:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 16:50:21,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:21,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:50:21,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:50:21,523 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:21,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:21,523 INFO L82 PathProgramCache]: Analyzing trace with hash 775852866, now seen corresponding path program 1 times [2020-09-24 16:50:21,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:21,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628417372] [2020-09-24 16:50:21,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:21,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 16:50:23,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1591 [2020-09-24 16:50:23,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:50:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:50:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 16:50:23,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,529 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:23,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:23,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 16:50:23,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:50:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:23,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:23,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:23,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:23,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:23,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:23,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:23,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:50:23,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:23,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:23,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:23,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 16:50:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:50:23,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:23,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:50:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:50:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:23,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:23,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 16:50:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:23,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:23,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:23,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:23,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 16:50:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:23,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:50:23,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:50:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:23,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:50:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:23,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:23,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:23,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:23,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:23,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:50:24,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628417372] [2020-09-24 16:50:24,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:24,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:50:24,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685672238] [2020-09-24 16:50:24,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:50:24,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:24,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:50:24,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:50:24,020 INFO L87 Difference]: Start difference. First operand 324 states and 359 transitions. Second operand 9 states. [2020-09-24 16:50:24,684 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:26,473 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:27,081 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 16:50:27,427 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:27,768 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:28,069 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:50:28,389 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:50:28,692 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:29,401 INFO L93 Difference]: Finished difference Result 879 states and 1082 transitions. [2020-09-24 16:50:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 16:50:29,402 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-24 16:50:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:29,409 INFO L225 Difference]: With dead ends: 879 [2020-09-24 16:50:29,409 INFO L226 Difference]: Without dead ends: 665 [2020-09-24 16:50:29,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:50:29,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-09-24 16:50:29,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 525. [2020-09-24 16:50:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-09-24 16:50:29,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 601 transitions. [2020-09-24 16:50:29,521 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 601 transitions. Word has length 171 [2020-09-24 16:50:29,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:29,522 INFO L479 AbstractCegarLoop]: Abstraction has 525 states and 601 transitions. [2020-09-24 16:50:29,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:50:29,522 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 601 transitions. [2020-09-24 16:50:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 16:50:29,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:29,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:50:29,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:50:29,526 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:29,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1677788292, now seen corresponding path program 1 times [2020-09-24 16:50:29,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:29,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814369999] [2020-09-24 16:50:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:29,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:29,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:32,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:41,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:41,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 16:50:41,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 16:50:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12395 [2020-09-24 16:50:41,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:50:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 16:50:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 16:50:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,361 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:42,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:42,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 16:50:42,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:42,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:42,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:42,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:42,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:42,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:42,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:42,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:50:42,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:42,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:42,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:42,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:42,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 16:50:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:50:42,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:50:42,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:50:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:50:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:50:42,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:50:42,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:50:42,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:50:42,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:50:42,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 16:50:42,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:50:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:42,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:42,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:42,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:50:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:42,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:42,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 16:50:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:42,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:42,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 16:50:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:42,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:42,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:42,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:42,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:50:42,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:50:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:50:42,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814369999] [2020-09-24 16:50:42,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:42,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:50:42,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072652463] [2020-09-24 16:50:42,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:50:42,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:42,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:50:42,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:50:42,706 INFO L87 Difference]: Start difference. First operand 525 states and 601 transitions. Second operand 10 states.