/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 interpolation-heuristic=FIRST --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_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:40:51,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:40:51,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:40:51,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:40:51,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:40:51,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:40:51,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:40:51,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:40:51,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:40:51,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:40:51,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:40:51,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:40:51,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:40:51,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:40:51,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:40:51,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:40:51,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:40:51,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:40:51,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:40:51,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:40:51,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:40:51,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:40:51,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:40:51,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:40:51,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:40:51,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:40:51,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:40:51,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:40:51,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:40:51,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:40:51,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:40:51,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:40:51,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:40:51,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:40:51,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:40:51,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:40:51,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:40:51,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:40:51,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:40:51,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:40:51,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:40:51,971 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 15:40:52,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:40:52,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:40:52,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:40:52,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:40:52,026 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:40:52,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:40:52,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:40:52,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:40:52,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:40:52,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:40:52,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:40:52,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:40:52,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:40:52,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:40:52,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:40:52,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:40:52,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:40:52,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:40:52,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:40:52,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:40:52,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:40:52,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:40:52,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:40:52,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:40:52,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:40:52,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:40:52,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:40:52,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:40:52,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:40:52,035 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:40:52,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:40:52,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:40:52,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:40:52,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:40:52,499 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:40:52,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-24 15:40:52,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39f0ac333/0bb590925cc84aefb1a6225db6c931e9/FLAG9e7f96f92 [2020-09-24 15:40:53,167 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:40:53,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-24 15:40:53,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39f0ac333/0bb590925cc84aefb1a6225db6c931e9/FLAG9e7f96f92 [2020-09-24 15:40:53,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39f0ac333/0bb590925cc84aefb1a6225db6c931e9 [2020-09-24 15:40:53,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:40:53,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:40:53,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:53,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:40:53,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:40:53,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:53" (1/1) ... [2020-09-24 15:40:53,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:53, skipping insertion in model container [2020-09-24 15:40:53,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:53" (1/1) ... [2020-09-24 15:40:53,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:40:53,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:40:53,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:54,006 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:40:54,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:54,157 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:40:54,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54 WrapperNode [2020-09-24 15:40:54,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:54,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:40:54,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:40:54,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:40:54,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (1/1) ... [2020-09-24 15:40:54,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (1/1) ... [2020-09-24 15:40:54,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (1/1) ... [2020-09-24 15:40:54,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (1/1) ... [2020-09-24 15:40:54,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (1/1) ... [2020-09-24 15:40:54,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (1/1) ... [2020-09-24 15:40:54,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (1/1) ... [2020-09-24 15:40:54,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:40:54,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:40:54,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:40:54,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:40:54,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (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 15:40:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:40:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:40:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:40:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:40:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:40:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:40:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:40:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:40:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:40:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:40:54,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:54,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:40:54,339 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:40:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:40:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:40:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:40:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:40:54,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:40:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:40:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:40:54,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:40:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:40:54,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:40:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:40:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:40:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:40:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:40:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:40:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:40:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:40:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:40:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:40:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:40:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:40:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:40:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:40:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:40:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:40:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:40:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:40:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:40:54,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:40:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:40:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:40:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:40:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:40:54,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:40:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:40:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:40:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:40:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:40:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:40:54,350 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:40:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:40:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:40:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:40:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:40:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:40:54,351 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:40:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:40:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:40:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:40:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:40:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:40:54,354 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:40:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:40:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:40:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:40:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:40:54,355 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:40:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:40:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:40:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:40:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:40:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:40:54,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:40:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:40:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:40:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:40:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:40:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:40:55,485 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:40:55,486 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:40:55,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:55 BoogieIcfgContainer [2020-09-24 15:40:55,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:40:55,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:40:55,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:40:55,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:40:55,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:40:53" (1/3) ... [2020-09-24 15:40:55,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d14db80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:55, skipping insertion in model container [2020-09-24 15:40:55,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:54" (2/3) ... [2020-09-24 15:40:55,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d14db80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:55, skipping insertion in model container [2020-09-24 15:40:55,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:55" (3/3) ... [2020-09-24 15:40:55,504 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-09-24 15:40:55,515 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:40:55,526 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:40:55,549 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:40:55,580 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:40:55,580 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:40:55,581 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:40:55,581 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:40:55,581 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:40:55,581 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:40:55,581 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:40:55,581 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:40:55,609 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-09-24 15:40:55,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:40:55,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:55,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:55,633 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:55,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:55,641 INFO L82 PathProgramCache]: Analyzing trace with hash -382472662, now seen corresponding path program 1 times [2020-09-24 15:40:55,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:55,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625796760] [2020-09-24 15:40:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:40:55,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:40:55,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:40:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,523 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:56,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:56,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:56,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:56,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:56,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:56,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:56,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:56,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:40:56,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:56,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:56,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:56,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:56,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:56,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:56,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:56,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:56,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:56,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:56,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:56,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:56,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:56,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:56,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:56,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:56,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:56,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:56,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:56,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:56,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:56,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:56,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:56,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:56,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:56,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:56,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:56,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:56,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:56,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:56,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:56,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:56,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:56,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:56,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:56,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:56,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:56,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:56,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:56,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:56,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:40:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:56,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:56,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:56,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:56,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:56,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:56,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:56,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:40:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:56,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:56,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:56,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:56,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:56,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:56,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:56,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:56,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:56,789 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 15:40:56,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625796760] [2020-09-24 15:40:56,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:56,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:40:56,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041445043] [2020-09-24 15:40:56,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:40:56,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:56,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:40:56,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:40:56,828 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 3 states. [2020-09-24 15:40:58,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:58,189 INFO L93 Difference]: Finished difference Result 467 states and 558 transitions. [2020-09-24 15:40:58,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:40:58,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:40:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:58,213 INFO L225 Difference]: With dead ends: 467 [2020-09-24 15:40:58,213 INFO L226 Difference]: Without dead ends: 291 [2020-09-24 15:40:58,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:40:58,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-24 15:40:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2020-09-24 15:40:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-24 15:40:58,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 272 transitions. [2020-09-24 15:40:58,363 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 272 transitions. Word has length 142 [2020-09-24 15:40:58,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:58,366 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 272 transitions. [2020-09-24 15:40:58,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:40:58,366 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 272 transitions. [2020-09-24 15:40:58,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:40:58,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:58,378 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] [2020-09-24 15:40:58,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:40:58,379 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:58,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:58,379 INFO L82 PathProgramCache]: Analyzing trace with hash -443770342, now seen corresponding path program 1 times [2020-09-24 15:40:58,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:58,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91704076] [2020-09-24 15:40:58,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:40:58,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:40:58,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:40:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:40:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,848 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:58,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:58,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:58,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:58,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,929 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:58,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:40:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:58,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:40:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,950 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,985 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 15:40:58,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91704076] [2020-09-24 15:40:58,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:58,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:40:58,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264482207] [2020-09-24 15:40:58,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:40:58,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:58,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:40:58,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:40:58,991 INFO L87 Difference]: Start difference. First operand 250 states and 272 transitions. Second operand 4 states. [2020-09-24 15:40:59,661 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:00,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:00,660 INFO L93 Difference]: Finished difference Result 384 states and 433 transitions. [2020-09-24 15:41:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:41:00,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:41:00,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:00,666 INFO L225 Difference]: With dead ends: 384 [2020-09-24 15:41:00,666 INFO L226 Difference]: Without dead ends: 274 [2020-09-24 15:41:00,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:41:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-24 15:41:00,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-09-24 15:41:00,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-24 15:41:00,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-24 15:41:00,719 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 143 [2020-09-24 15:41:00,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:00,720 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-24 15:41:00,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:41:00,720 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-24 15:41:00,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 15:41:00,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:00,723 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] [2020-09-24 15:41:00,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:41:00,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:00,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:00,723 INFO L82 PathProgramCache]: Analyzing trace with hash 149326545, now seen corresponding path program 1 times [2020-09-24 15:41:00,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:00,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581058271] [2020-09-24 15:41:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:41:00,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:41:00,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:00,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:41:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:41:00,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,110 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:01,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:01,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:01,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:41:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,210 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:01,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:01,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:01,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:01,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:01,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:01,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:01,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:01,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:01,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:01,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,230 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,230 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:01,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:01,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:01,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:41:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,235 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:01,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:01,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 15:41:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:01,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:01,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:01,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:01,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:01,274 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 15:41:01,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581058271] [2020-09-24 15:41:01,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:01,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:41:01,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607147280] [2020-09-24 15:41:01,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:41:01,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:01,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:41:01,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:41:01,277 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-24 15:41:01,849 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:02,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:02,702 INFO L93 Difference]: Finished difference Result 404 states and 458 transitions. [2020-09-24 15:41:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:41:02,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 15:41:02,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:02,706 INFO L225 Difference]: With dead ends: 404 [2020-09-24 15:41:02,706 INFO L226 Difference]: Without dead ends: 274 [2020-09-24 15:41:02,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:41:02,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-24 15:41:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-09-24 15:41:02,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-24 15:41:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 258 transitions. [2020-09-24 15:41:02,746 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 258 transitions. Word has length 152 [2020-09-24 15:41:02,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:02,747 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 258 transitions. [2020-09-24 15:41:02,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:41:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 258 transitions. [2020-09-24 15:41:02,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-24 15:41:02,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:02,750 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] [2020-09-24 15:41:02,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:41:02,750 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:02,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:02,751 INFO L82 PathProgramCache]: Analyzing trace with hash -2076870304, now seen corresponding path program 1 times [2020-09-24 15:41:02,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:02,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56180833] [2020-09-24 15:41:02,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:02,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:02,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:02,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:02,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:02,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:41:02,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:02,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:41:02,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:41:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:41:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 15:41:02,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,206 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:03,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:03,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:03,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:41:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:03,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:03,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:03,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:03,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,324 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:03,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:03,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:41:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 15:41:03,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:03,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:41:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 15:41:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:03,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:41:03,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:41:03,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:41:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:41:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:41:03,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:03,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:03,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:03,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:03,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 15:41:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:03,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:03,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:03,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 15:41:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:03,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:03,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:03,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:03,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:03,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:03,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:03,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:03,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:03,572 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 15:41:03,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56180833] [2020-09-24 15:41:03,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:03,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:41:03,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008713741] [2020-09-24 15:41:03,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:41:03,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:03,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:41:03,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:41:03,576 INFO L87 Difference]: Start difference. First operand 240 states and 258 transitions. Second operand 7 states. [2020-09-24 15:41:04,364 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:05,888 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:06,531 INFO L93 Difference]: Finished difference Result 535 states and 613 transitions. [2020-09-24 15:41:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:41:06,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-09-24 15:41:06,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:06,535 INFO L225 Difference]: With dead ends: 535 [2020-09-24 15:41:06,535 INFO L226 Difference]: Without dead ends: 405 [2020-09-24 15:41:06,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:41:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-09-24 15:41:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 346. [2020-09-24 15:41:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-24 15:41:06,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 373 transitions. [2020-09-24 15:41:06,587 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 373 transitions. Word has length 165 [2020-09-24 15:41:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:06,588 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 373 transitions. [2020-09-24 15:41:06,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:41:06,588 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 373 transitions. [2020-09-24 15:41:06,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 15:41:06,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:06,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:06,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:41:06,591 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:06,592 INFO L82 PathProgramCache]: Analyzing trace with hash -302631432, now seen corresponding path program 1 times [2020-09-24 15:41:06,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:06,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758466806] [2020-09-24 15:41:06,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:06,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:41:06,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -65 [2020-09-24 15:41:06,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 65 [2020-09-24 15:41:06,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:06,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 15:41:06,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:06,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:06,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:06,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 15:41:06,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:06,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:06,924 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:06,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:06,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:06,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:06,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:06,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:06,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:06,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:06,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:06,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:06,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:06,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:06,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,055 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:07,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:07,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:41:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 15:41:07,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:07,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 15:41:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:41:07,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:07,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:41:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:07,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:07,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:07,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:41:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:07,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:07,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:07,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:41:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:07,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:07,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 15:41:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 15:41:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:07,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:07,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:07,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:41:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:07,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:07,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:07,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:07,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:07,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:07,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:07,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:07,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:07,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:07,221 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 15:41:07,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758466806] [2020-09-24 15:41:07,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:07,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:41:07,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128891524] [2020-09-24 15:41:07,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:41:07,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:07,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:41:07,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:41:07,223 INFO L87 Difference]: Start difference. First operand 346 states and 373 transitions. Second operand 8 states. [2020-09-24 15:41:08,380 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:08,705 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:09,043 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:09,363 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:09,633 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:10,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:10,622 INFO L93 Difference]: Finished difference Result 646 states and 735 transitions. [2020-09-24 15:41:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:41:10,625 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2020-09-24 15:41:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:10,628 INFO L225 Difference]: With dead ends: 646 [2020-09-24 15:41:10,628 INFO L226 Difference]: Without dead ends: 410 [2020-09-24 15:41:10,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:41:10,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-09-24 15:41:10,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 352. [2020-09-24 15:41:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-24 15:41:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 379 transitions. [2020-09-24 15:41:10,670 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 379 transitions. Word has length 189 [2020-09-24 15:41:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:10,671 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 379 transitions. [2020-09-24 15:41:10,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:41:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 379 transitions. [2020-09-24 15:41:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 15:41:10,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:10,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:10,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:41:10,674 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:10,675 INFO L82 PathProgramCache]: Analyzing trace with hash 837162392, now seen corresponding path program 1 times [2020-09-24 15:41:10,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:10,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922613842] [2020-09-24 15:41:10,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 15:41:10,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:41:10,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:41:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:41:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:41:10,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:11,106 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:11,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:11,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:11,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:41:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:11,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:11,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:11,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:11,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:11,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:11,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:11,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:11,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:11,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,222 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:11,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:11,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:11,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:11,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:11,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:11,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:11,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:11,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:41:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 15:41:11,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:11,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 15:41:11,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:11,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:41:11,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:11,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:11,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:11,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:11,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:11,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:11,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:11,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:11,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:11,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:11,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,287 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:11,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:11,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:11,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:11,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:11,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 15:41:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:11,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:11,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:11,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:41:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:11,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:11,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:11,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:11,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:11,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:11,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:11,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:11,382 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 15:41:11,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922613842] [2020-09-24 15:41:11,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:11,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:41:11,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527567168] [2020-09-24 15:41:11,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:41:11,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:11,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:41:11,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:41:11,385 INFO L87 Difference]: Start difference. First operand 352 states and 379 transitions. Second operand 9 states. [2020-09-24 15:41:11,878 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:13,427 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:13,742 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:14,077 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:14,374 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:14,735 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:41:15,029 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:15,340 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:15,768 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:16,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:16,855 INFO L93 Difference]: Finished difference Result 890 states and 1026 transitions. [2020-09-24 15:41:16,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:16,855 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-24 15:41:16,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:16,860 INFO L225 Difference]: With dead ends: 890 [2020-09-24 15:41:16,860 INFO L226 Difference]: Without dead ends: 648 [2020-09-24 15:41:16,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:41:16,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2020-09-24 15:41:16,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 557. [2020-09-24 15:41:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-09-24 15:41:16,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 606 transitions. [2020-09-24 15:41:16,953 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 606 transitions. Word has length 189 [2020-09-24 15:41:16,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:16,954 INFO L479 AbstractCegarLoop]: Abstraction has 557 states and 606 transitions. [2020-09-24 15:41:16,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:41:16,954 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 606 transitions. [2020-09-24 15:41:16,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 15:41:16,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:16,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:16,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:41:16,958 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:16,958 INFO L82 PathProgramCache]: Analyzing trace with hash -980824808, now seen corresponding path program 1 times [2020-09-24 15:41:16,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:16,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330691738] [2020-09-24 15:41:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 15:41:17,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:41:17,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:41:17,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:41:17,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:41:17,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,389 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:17,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,425 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:17,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:41:17,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,471 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:17,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:17,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:17,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:17,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:17,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:17,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:17,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 15:41:17,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:17,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:41:17,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:17,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:17,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 15:41:17,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,571 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,571 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:17,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:17,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:17,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:17,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:17,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:41:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:17,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:17,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:17,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:17,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:41:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:17,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:17,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:17,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:17,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:17,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:17,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:17,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:17,714 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 15:41:17,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330691738] [2020-09-24 15:41:17,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:17,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:17,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491424727] [2020-09-24 15:41:17,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:17,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:17,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:17,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:17,722 INFO L87 Difference]: Start difference. First operand 557 states and 606 transitions. Second operand 10 states. [2020-09-24 15:41:18,242 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:19,998 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-24 15:41:20,310 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:41:20,921 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2020-09-24 15:41:21,274 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 15:41:21,634 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:21,967 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:22,264 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:22,558 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:22,974 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:41:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:23,765 INFO L93 Difference]: Finished difference Result 714 states and 828 transitions. [2020-09-24 15:41:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:41:23,766 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 15:41:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:23,772 INFO L225 Difference]: With dead ends: 714 [2020-09-24 15:41:23,772 INFO L226 Difference]: Without dead ends: 711 [2020-09-24 15:41:23,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-09-24 15:41:23,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-09-24 15:41:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 557. [2020-09-24 15:41:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-09-24 15:41:23,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 605 transitions. [2020-09-24 15:41:23,853 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 605 transitions. Word has length 194 [2020-09-24 15:41:23,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:23,854 INFO L479 AbstractCegarLoop]: Abstraction has 557 states and 605 transitions. [2020-09-24 15:41:23,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:23,854 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 605 transitions. [2020-09-24 15:41:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 15:41:23,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:23,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:23,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:41:23,857 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:23,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:23,858 INFO L82 PathProgramCache]: Analyzing trace with hash 532479923, now seen corresponding path program 1 times [2020-09-24 15:41:23,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:23,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536368135] [2020-09-24 15:41:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:23,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:23,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:23,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:23,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:23,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 15:41:23,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:23,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:23,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:23,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-24 15:41:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:23,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,246 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:24,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:24,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,289 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:24,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:24,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,292 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:24,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:24,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,296 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,296 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:24,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:24,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,301 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,301 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,301 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:24,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:24,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:24,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,338 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,338 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:41:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 15:41:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:24,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:24,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:41:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:24,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:24,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:24,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:41:24,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:24,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:24,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:24,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:24,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:24,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 15:41:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,478 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:24,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:24,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 15:41:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:24,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:24,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:24,517 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 15:41:24,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536368135] [2020-09-24 15:41:24,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:24,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:24,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711293407] [2020-09-24 15:41:24,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:24,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:24,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:24,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:24,521 INFO L87 Difference]: Start difference. First operand 557 states and 605 transitions. Second operand 10 states. [2020-09-24 15:41:25,925 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:26,239 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:26,554 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:41:26,881 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:27,229 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:27,517 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:28,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:28,633 INFO L93 Difference]: Finished difference Result 1168 states and 1344 transitions. [2020-09-24 15:41:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:41:28,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-24 15:41:28,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:28,638 INFO L225 Difference]: With dead ends: 1168 [2020-09-24 15:41:28,638 INFO L226 Difference]: Without dead ends: 721 [2020-09-24 15:41:28,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:41:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-09-24 15:41:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 573. [2020-09-24 15:41:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-24 15:41:28,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 621 transitions. [2020-09-24 15:41:28,709 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 621 transitions. Word has length 195 [2020-09-24 15:41:28,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:28,710 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 621 transitions. [2020-09-24 15:41:28,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:28,710 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 621 transitions. [2020-09-24 15:41:28,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 15:41:28,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:28,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:28,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:41:28,713 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:28,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:28,714 INFO L82 PathProgramCache]: Analyzing trace with hash -2081684234, now seen corresponding path program 1 times [2020-09-24 15:41:28,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:28,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061546846] [2020-09-24 15:41:28,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:28,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:28,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:28,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:28,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:28,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 15:41:28,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:41:28,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:41:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:41:28,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 15:41:28,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:29,093 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:29,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:29,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:29,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:41:29,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:29,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:29,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,179 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:29,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:29,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:29,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:29,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:29,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,193 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:29,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:29,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:29,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:29,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:41:29,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:29,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 15:41:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 15:41:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:29,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:41:29,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:29,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:29,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,284 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,284 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:29,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:29,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:41:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 15:41:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,305 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,305 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:29,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:29,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 15:41:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:29,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:29,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:29,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:29,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:29,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:29,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:29,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:29,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:29,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:29,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:29,380 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 15:41:29,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061546846] [2020-09-24 15:41:29,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:29,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:41:29,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517145569] [2020-09-24 15:41:29,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:41:29,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:29,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:41:29,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:41:29,383 INFO L87 Difference]: Start difference. First operand 573 states and 621 transitions. Second operand 7 states. [2020-09-24 15:41:29,929 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:30,573 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:32,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:32,987 INFO L93 Difference]: Finished difference Result 1627 states and 1938 transitions. [2020-09-24 15:41:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:32,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-09-24 15:41:32,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:32,993 INFO L225 Difference]: With dead ends: 1627 [2020-09-24 15:41:32,994 INFO L226 Difference]: Without dead ends: 1164 [2020-09-24 15:41:32,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:41:32,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2020-09-24 15:41:33,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 991. [2020-09-24 15:41:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-09-24 15:41:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1113 transitions. [2020-09-24 15:41:33,118 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1113 transitions. Word has length 195 [2020-09-24 15:41:33,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:33,118 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1113 transitions. [2020-09-24 15:41:33,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:41:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1113 transitions. [2020-09-24 15:41:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 15:41:33,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:33,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:33,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:41:33,122 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:33,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:33,122 INFO L82 PathProgramCache]: Analyzing trace with hash -727099307, now seen corresponding path program 1 times [2020-09-24 15:41:33,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:33,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621698402] [2020-09-24 15:41:33,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:41:33,195 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:41:33,195 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:41:33,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:41:33,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:41:33 BoogieIcfgContainer [2020-09-24 15:41:33,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:41:33,229 INFO L168 Benchmark]: Toolchain (without parser) took 39796.24 ms. Allocated memory was 140.5 MB in the beginning and 746.6 MB in the end (delta: 606.1 MB). Free memory was 103.1 MB in the beginning and 502.8 MB in the end (delta: -399.7 MB). Peak memory consumption was 206.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:33,231 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:41:33,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.67 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 102.5 MB in the beginning and 174.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:33,233 INFO L168 Benchmark]: Boogie Preprocessor took 96.41 ms. Allocated memory is still 206.0 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:33,233 INFO L168 Benchmark]: RCFGBuilder took 1237.28 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 169.9 MB in the beginning and 172.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:33,234 INFO L168 Benchmark]: TraceAbstraction took 37733.11 ms. Allocated memory was 233.3 MB in the beginning and 746.6 MB in the end (delta: 513.3 MB). Free memory was 172.8 MB in the beginning and 502.8 MB in the end (delta: -330.0 MB). Peak memory consumption was 183.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:33,237 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.67 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 102.5 MB in the beginning and 174.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.41 ms. Allocated memory is still 206.0 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1237.28 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 169.9 MB in the beginning and 172.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37733.11 ms. Allocated memory was 233.3 MB in the beginning and 746.6 MB in the end (delta: 513.3 MB). Free memory was 172.8 MB in the beginning and 502.8 MB in the end (delta: -330.0 MB). Peak memory consumption was 183.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) [L788] CALL waterRise() [L850] COND TRUE waterLevel < 2 [L851] waterLevel = waterLevel + 1 [L788] RET waterRise() [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) [L798] CALL changeMethaneLevel() [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 [L798] RET changeMethaneLevel() [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L819] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] CALL processEnvironment() [L650] int tmp ; [L653] COND FALSE !(\read(pumpRunning)) [L668] CALL processEnvironment__wrappee__highWaterSensor() [L624] int tmp ; [L627] COND TRUE ! pumpRunning [L629] CALL, EXPR isHighWaterLevel() [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; [L753] CALL, EXPR isHighWaterSensorDry() [L912] int retValue_acc ; [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); [L753] RET, EXPR isHighWaterSensorDry() [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); [L629] RET, EXPR isHighWaterLevel() [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) [L633] CALL activatePump() [L678] pumpRunning = 1 [L633] RET activatePump() [L668] RET processEnvironment__wrappee__highWaterSensor() [L604] RET processEnvironment() [L610] CALL __utac_acc__Specification1_spec__1() [L514] int tmp ; [L515] int tmp___0 ; [L519] CALL, EXPR isMethaneLevelCritical() [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); [L519] RET, EXPR isMethaneLevelCritical() [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) [L523] CALL, EXPR isPumpRunning() [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L523] RET, EXPR isPumpRunning() [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) [L527] CALL __automaton_fail() [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2147 SDtfs, 3458 SDslu, 2973 SDs, 0 SdLazy, 6097 SolverSat, 1035 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 326 GetRequests, 225 SyntacticMatches, 4 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=991occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 792 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1764 NumberOfCodeBlocks, 1764 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1555 ConstructedInterpolants, 0 QuantifiedInterpolants, 751249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...