/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:00:17,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:00:17,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:00:17,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:00:17,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:00:17,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:00:17,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:00:17,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:00:17,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:00:17,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:00:17,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:00:17,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:00:17,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:00:17,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:00:17,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:00:17,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:00:17,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:00:17,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:00:18,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:00:18,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:00:18,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:00:18,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:00:18,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:00:18,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:00:18,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:00:18,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:00:18,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:00:18,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:00:18,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:00:18,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:00:18,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:00:18,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:00:18,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:00:18,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:00:18,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:00:18,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:00:18,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:00:18,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:00:18,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:00:18,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:00:18,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:00:18,031 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 [2020-10-14 07:00:18,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:00:18,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:00:18,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:00:18,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:00:18,076 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:00:18,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:00:18,076 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:00:18,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:00:18,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:00:18,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:00:18,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:00:18,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:00:18,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:00:18,079 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:00:18,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:00:18,079 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:00:18,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:00:18,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:00:18,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:00:18,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:00:18,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:00:18,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:00:18,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:00:18,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:00:18,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:00:18,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:00:18,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:00:18,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:00:18,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:00:18,082 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:00:18,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:00:18,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:00:18,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:00:18,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:00:18,392 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:00:18,393 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-10-14 07:00:18,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95de6c954/370f5cd617f942489a898b014df2285e/FLAGa6a257f0a [2020-10-14 07:00:18,957 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:00:18,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-10-14 07:00:18,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95de6c954/370f5cd617f942489a898b014df2285e/FLAGa6a257f0a [2020-10-14 07:00:19,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95de6c954/370f5cd617f942489a898b014df2285e [2020-10-14 07:00:19,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:00:19,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:00:19,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:00:19,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:00:19,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:00:19,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:19,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30847a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19, skipping insertion in model container [2020-10-14 07:00:19,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:19,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:00:19,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:00:19,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:00:19,812 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:00:19,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:00:19,940 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:00:19,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19 WrapperNode [2020-10-14 07:00:19,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:00:19,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:00:19,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:00:19,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:00:19,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:19,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:19,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:19,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:20,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:20,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:20,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (1/1) ... [2020-10-14 07:00:20,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:00:20,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:00:20,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:00:20,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:00:20,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (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 [2020-10-14 07:00:20,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:00:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:00:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:00:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:00:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:00:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:00:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:00:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:00:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:00:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:00:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:00:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:00:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:00:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:00:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:00:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:00:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:00:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:00:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:00:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:00:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:00:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:00:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:00:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:00:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:00:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:00:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:00:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:00:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:00:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:00:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:00:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:00:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:00:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:00:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:00:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:00:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:00:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:00:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:00:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:00:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:00:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:00:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:00:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:00:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:00:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:00:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:00:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:00:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:00:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:00:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:00:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:00:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:00:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:00:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:00:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:00:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:00:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:00:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:00:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:00:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:00:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:00:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:00:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:00:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:00:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:00:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:00:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:00:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:00:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:00:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:00:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:00:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:00:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:00:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:00:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:00:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:00:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:00:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:00:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:00:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:00:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:00:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:00:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:00:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:00:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:00:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:00:21,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:00:21,162 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:00:21,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:00:21 BoogieIcfgContainer [2020-10-14 07:00:21,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:00:21,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:00:21,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:00:21,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:00:21,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:00:19" (1/3) ... [2020-10-14 07:00:21,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b661ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:00:21, skipping insertion in model container [2020-10-14 07:00:21,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:00:19" (2/3) ... [2020-10-14 07:00:21,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b661ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:00:21, skipping insertion in model container [2020-10-14 07:00:21,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:00:21" (3/3) ... [2020-10-14 07:00:21,177 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-10-14 07:00:21,188 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:00:21,197 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:00:21,210 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:00:21,236 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:00:21,237 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:00:21,237 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:00:21,237 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:00:21,237 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:00:21,237 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:00:21,238 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:00:21,238 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:00:21,261 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-10-14 07:00:21,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 07:00:21,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:00:21,273 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] [2020-10-14 07:00:21,274 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:00:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:00:21,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1081228888, now seen corresponding path program 1 times [2020-10-14 07:00:21,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:00:21,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632526009] [2020-10-14 07:00:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:00:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:21,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:21,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:22,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:22,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:23,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:25,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:25,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 07:00:25,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:00:25,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4205 [2020-10-14 07:00:25,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:25,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:00:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:25,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:00:26,118 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:00:26,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:00:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:26,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:26,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:26,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:26,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:26,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:00:26,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:26,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:26,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:26,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:26,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:00:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:26,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:26,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:26,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:26,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:26,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:26,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:26,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:26,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:26,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:26,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:00:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:26,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:26,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:26,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:26,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:26,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:26,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:26,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:26,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:00:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:26,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:26,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:26,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:26,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:26,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:26,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:26,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:26,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:26,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:00:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:26,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:26,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:26,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:26,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:26,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:26,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:26,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:26,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:00:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:26,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:26,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:26,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:26,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:26,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:26,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:26,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:26,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:26,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:00:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:26,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:26,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:26,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:26,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:26,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:26,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:26,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:26,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:26,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:26,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:26,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:00:26,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632526009] [2020-10-14 07:00:26,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:00:26,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:00:26,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006661055] [2020-10-14 07:00:26,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:00:26,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:00:26,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:00:26,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:00:26,249 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 3 states. [2020-10-14 07:00:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:00:27,425 INFO L93 Difference]: Finished difference Result 301 states and 397 transitions. [2020-10-14 07:00:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:00:27,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-14 07:00:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:00:27,443 INFO L225 Difference]: With dead ends: 301 [2020-10-14 07:00:27,443 INFO L226 Difference]: Without dead ends: 163 [2020-10-14 07:00:27,449 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 [2020-10-14 07:00:27,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-14 07:00:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 129. [2020-10-14 07:00:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-14 07:00:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 153 transitions. [2020-10-14 07:00:27,543 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 153 transitions. Word has length 46 [2020-10-14 07:00:27,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:00:27,544 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 153 transitions. [2020-10-14 07:00:27,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:00:27,544 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 153 transitions. [2020-10-14 07:00:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 07:00:27,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:00:27,548 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] [2020-10-14 07:00:27,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:00:27,549 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:00:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:00:27,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1618039840, now seen corresponding path program 1 times [2020-10-14 07:00:27,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:00:27,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412491514] [2020-10-14 07:00:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:00:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:27,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:28,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:29,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:29,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:32,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:32,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 07:00:32,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:00:32,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:00:32,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:32,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:00:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:00:32,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:32,928 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:00:32,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:00:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:32,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:32,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:32,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:32,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:32,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:00:32,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:32,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:33,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:00:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:33,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:33,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:33,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:33,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:33,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:33,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:33,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:33,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:33,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:33,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:33,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:33,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:00:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:33,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:33,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:33,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:33,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:33,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:00:33,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:33,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:33,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:00:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:33,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:33,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:33,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:33,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:33,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:33,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:33,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:33,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:00:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:33,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:33,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:33,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:33,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:33,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:00:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:33,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:33,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:33,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:33,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:33,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:33,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:33,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:33,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:33,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:00:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:33,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:33,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:33,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:33,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:33,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:00:33,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:33,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:33,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:33,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:00:33,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412491514] [2020-10-14 07:00:33,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:00:33,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:00:33,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071512776] [2020-10-14 07:00:33,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:00:33,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:00:33,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:00:33,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:00:33,074 INFO L87 Difference]: Start difference. First operand 129 states and 153 transitions. Second operand 4 states. [2020-10-14 07:00:33,507 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:00:34,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:00:34,368 INFO L93 Difference]: Finished difference Result 228 states and 280 transitions. [2020-10-14 07:00:34,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:00:34,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-14 07:00:34,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:00:34,379 INFO L225 Difference]: With dead ends: 228 [2020-10-14 07:00:34,379 INFO L226 Difference]: Without dead ends: 147 [2020-10-14 07:00:34,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:00:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-14 07:00:34,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 120. [2020-10-14 07:00:34,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 07:00:34,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2020-10-14 07:00:34,437 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 47 [2020-10-14 07:00:34,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:00:34,438 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2020-10-14 07:00:34,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:00:34,438 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2020-10-14 07:00:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 07:00:34,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:00:34,444 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] [2020-10-14 07:00:34,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:00:34,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:00:34,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:00:34,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1339561462, now seen corresponding path program 1 times [2020-10-14 07:00:34,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:00:34,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416751948] [2020-10-14 07:00:34,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:00:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:34,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:34,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:35,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:37,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:37,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 07:00:37,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:00:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3173 [2020-10-14 07:00:37,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:37,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:00:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 07:00:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:00:37,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:37,957 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:00:37,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:00:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:37,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:38,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:38,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:38,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:38,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 07:00:38,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:38,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:38,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:00:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:38,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:38,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:38,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:38,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:38,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:00:38,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:38,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:38,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:00:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:38,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:38,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:38,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:38,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:38,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:38,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:38,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:38,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:38,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:00:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:38,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:38,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:38,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:38,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:38,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:38,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:38,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:38,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:38,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:00:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:38,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:38,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:38,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:38,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:38,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:38,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:38,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:00:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:38,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:38,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:38,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:38,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:38,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:00:38,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:38,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:00:38,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:38,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:00:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:38,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:38,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:38,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:38,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:38,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:00:38,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:38,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:38,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:00:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:00:38,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:00:38,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416751948] [2020-10-14 07:00:38,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:00:38,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:00:38,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691098537] [2020-10-14 07:00:38,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:00:38,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:00:38,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:00:38,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:00:38,108 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand 7 states. [2020-10-14 07:00:38,603 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:00:39,447 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:00:39,754 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:00:40,010 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-14 07:00:40,528 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:00:40,819 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:00:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:00:41,479 INFO L93 Difference]: Finished difference Result 305 states and 393 transitions. [2020-10-14 07:00:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:00:41,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-14 07:00:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:00:41,484 INFO L225 Difference]: With dead ends: 305 [2020-10-14 07:00:41,485 INFO L226 Difference]: Without dead ends: 209 [2020-10-14 07:00:41,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:00:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-14 07:00:41,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 187. [2020-10-14 07:00:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-14 07:00:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 228 transitions. [2020-10-14 07:00:41,550 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 228 transitions. Word has length 51 [2020-10-14 07:00:41,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:00:41,550 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 228 transitions. [2020-10-14 07:00:41,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:00:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 228 transitions. [2020-10-14 07:00:41,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 07:00:41,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:00:41,561 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] [2020-10-14 07:00:41,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:00:41,561 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:00:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:00:41,562 INFO L82 PathProgramCache]: Analyzing trace with hash -2089178819, now seen corresponding path program 1 times [2020-10-14 07:00:41,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:00:41,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068621106] [2020-10-14 07:00:41,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:00:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:41,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:42,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:46,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:46,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 07:00:46,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:00:46,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 07:00:46,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:46,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:00:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 07:00:46,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:00:46,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:46,968 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:00:46,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:00:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:46,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:46,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:46,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:46,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:00:46,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:46,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:46,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:47,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:00:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:47,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:00:47,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:47,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:00:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:47,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:00:47,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:47,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:47,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:00:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:47,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:00:47,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:00:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:47,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:47,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:47,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:00:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:00:47,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:00:47,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 07:00:47,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:00:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 07:00:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:00:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:47,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:00:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:00:47,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:00:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:00:47,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:00:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:00:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:00:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:47,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:00:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:00:47,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:00:47,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 07:00:47,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:00:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:00:47,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:47,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:00:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:00:47,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:47,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:47,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:47,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:00:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:47,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:47,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:47,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:47,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:00:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:47,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:47,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:47,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:00:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:47,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:47,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:47,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:47,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:47,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:47,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:47,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:00:47,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068621106] [2020-10-14 07:00:47,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:00:47,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:00:47,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225894152] [2020-10-14 07:00:47,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:00:47,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:00:47,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:00:47,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:00:47,279 INFO L87 Difference]: Start difference. First operand 187 states and 228 transitions. Second operand 8 states. [2020-10-14 07:00:48,329 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:00:48,567 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:00:48,821 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:00:49,050 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:00:49,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:00:49,735 INFO L93 Difference]: Finished difference Result 394 states and 508 transitions. [2020-10-14 07:00:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:00:49,736 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-14 07:00:49,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:00:49,740 INFO L225 Difference]: With dead ends: 394 [2020-10-14 07:00:49,740 INFO L226 Difference]: Without dead ends: 231 [2020-10-14 07:00:49,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:00:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-14 07:00:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 195. [2020-10-14 07:00:49,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-14 07:00:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2020-10-14 07:00:49,789 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 79 [2020-10-14 07:00:49,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:00:49,790 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2020-10-14 07:00:49,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:00:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2020-10-14 07:00:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 07:00:49,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:00:49,792 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] [2020-10-14 07:00:49,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:00:49,792 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:00:49,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:00:49,793 INFO L82 PathProgramCache]: Analyzing trace with hash -2066546565, now seen corresponding path program 1 times [2020-10-14 07:00:49,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:00:49,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877149629] [2020-10-14 07:00:49,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:00:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:49,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:50,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 07:00:51,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:00:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1294 [2020-10-14 07:00:51,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:00:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 07:00:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:51,404 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:00:51,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:00:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:00:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:00:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:51,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:51,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:00:51,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:00:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:51,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:51,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:00:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:00:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:51,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:51,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:00:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:00:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:51,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:51,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:00:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:00:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:00:51,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:00:51,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:00:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:00:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:00:51,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:00:51,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:51,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:00:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:00:51,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:00:51,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:51,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:51,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:00:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:00:51,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:51,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:00:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:51,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:51,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:51,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:51,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 07:00:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:51,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:00:51,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:00:51,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:51,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:00:51,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 07:00:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:51,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:51,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:51,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:51,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:51,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:51,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:00:51,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877149629] [2020-10-14 07:00:51,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:00:51,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:00:51,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743582218] [2020-10-14 07:00:51,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:00:51,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:00:51,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:00:51,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:00:51,568 INFO L87 Difference]: Start difference. First operand 195 states and 236 transitions. Second operand 8 states. [2020-10-14 07:00:51,976 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:00:52,625 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:00:52,888 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:00:53,138 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:00:53,368 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:00:53,665 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:00:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:00:55,084 INFO L93 Difference]: Finished difference Result 585 states and 769 transitions. [2020-10-14 07:00:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:00:55,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-14 07:00:55,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:00:55,089 INFO L225 Difference]: With dead ends: 585 [2020-10-14 07:00:55,090 INFO L226 Difference]: Without dead ends: 414 [2020-10-14 07:00:55,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:00:55,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-14 07:00:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 351. [2020-10-14 07:00:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-14 07:00:55,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 431 transitions. [2020-10-14 07:00:55,163 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 431 transitions. Word has length 79 [2020-10-14 07:00:55,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:00:55,163 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 431 transitions. [2020-10-14 07:00:55,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:00:55,164 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 431 transitions. [2020-10-14 07:00:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 07:00:55,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:00:55,165 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] [2020-10-14 07:00:55,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:00:55,166 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:00:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:00:55,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1596121919, now seen corresponding path program 1 times [2020-10-14 07:00:55,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:00:55,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783125262] [2020-10-14 07:00:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:00:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 07:00:55,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-14 07:00:55,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:00:55,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:55,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 07:00:55,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,824 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:00:55,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:00:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:55,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 07:00:55,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:00:55,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:00:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:55,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:55,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:00:55,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:00:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:55,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:55,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:00:55,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:00:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:55,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:55,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:00:55,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:00:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:00:55,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:55,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:00:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 07:00:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:55,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:55,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:00:55,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:00:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:00:55,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:00:55,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 07:00:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:00:55,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:00:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:00:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:00:55,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:00:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:55,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:00:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:55,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:55,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:55,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:00:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:55,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:00:55,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:55,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:00:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:55,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:00:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:56,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:56,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:56,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:00:56,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:56,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:56,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:56,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:00:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:56,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:00:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:56,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:56,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:56,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:56,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:56,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:56,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:00:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:00:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:00:56,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:56,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 07:00:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:56,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:56,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:56,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:56,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:00:56,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:56,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:56,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:00:56,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:00:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:56,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:00:56,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:00:56,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:00:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:00:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:00:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:00:56,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:00:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:00:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:00:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:00:56,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:00:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:00:56,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783125262] [2020-10-14 07:00:56,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:00:56,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:00:56,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731983224] [2020-10-14 07:00:56,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:00:56,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:00:56,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:00:56,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:00:56,051 INFO L87 Difference]: Start difference. First operand 351 states and 431 transitions. Second operand 7 states. [2020-10-14 07:00:56,435 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:00:56,927 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:00:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:00:59,635 INFO L93 Difference]: Finished difference Result 1371 states and 1938 transitions. [2020-10-14 07:00:59,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:00:59,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-10-14 07:00:59,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:00:59,644 INFO L225 Difference]: With dead ends: 1371 [2020-10-14 07:00:59,644 INFO L226 Difference]: Without dead ends: 1044 [2020-10-14 07:00:59,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:00:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-14 07:00:59,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 859. [2020-10-14 07:00:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-14 07:00:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1079 transitions. [2020-10-14 07:00:59,815 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1079 transitions. Word has length 83 [2020-10-14 07:00:59,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:00:59,815 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1079 transitions. [2020-10-14 07:00:59,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:00:59,816 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1079 transitions. [2020-10-14 07:00:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 07:00:59,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:00:59,818 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] [2020-10-14 07:00:59,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:00:59,818 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:00:59,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:00:59,819 INFO L82 PathProgramCache]: Analyzing trace with hash 570629920, now seen corresponding path program 1 times [2020-10-14 07:00:59,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:00:59,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182166473] [2020-10-14 07:00:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:00:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:00:59,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 07:01:00,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 07:01:00,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:00,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 07:01:00,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:00,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:00,289 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:00,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:00,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 07:01:00,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:00,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:00,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:00,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:00,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:00,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:00,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:00,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:00,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:00,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:00,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:00,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 07:01:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:00,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:00,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:01:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:00,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:01:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 07:01:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:00,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:01:00,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:01:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:00,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:01:00,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:01:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:00,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:00,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:01:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:00,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:00,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:00,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:00,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 07:01:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:00,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:00,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:01:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:00,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:00,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:00,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:00,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:00,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182166473] [2020-10-14 07:01:00,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:00,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:01:00,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823631338] [2020-10-14 07:01:00,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:01:00,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:00,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:01:00,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:01:00,477 INFO L87 Difference]: Start difference. First operand 859 states and 1079 transitions. Second operand 8 states. [2020-10-14 07:01:01,427 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:01,699 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:01,975 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:03,022 INFO L93 Difference]: Finished difference Result 1673 states and 2225 transitions. [2020-10-14 07:01:03,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 07:01:03,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 07:01:03,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:03,032 INFO L225 Difference]: With dead ends: 1673 [2020-10-14 07:01:03,032 INFO L226 Difference]: Without dead ends: 838 [2020-10-14 07:01:03,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:01:03,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-14 07:01:03,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 715. [2020-10-14 07:01:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2020-10-14 07:01:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 883 transitions. [2020-10-14 07:01:03,196 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 883 transitions. Word has length 83 [2020-10-14 07:01:03,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:03,197 INFO L479 AbstractCegarLoop]: Abstraction has 715 states and 883 transitions. [2020-10-14 07:01:03,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:01:03,197 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 883 transitions. [2020-10-14 07:01:03,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-14 07:01:03,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:03,203 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] [2020-10-14 07:01:03,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:01:03,204 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:03,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:03,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1146127589, now seen corresponding path program 1 times [2020-10-14 07:01:03,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:03,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099019713] [2020-10-14 07:01:03,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:01:03,241 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:01:03,242 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:01:03,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:01:03,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:01:03 BoogieIcfgContainer [2020-10-14 07:01:03,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:01:03,294 INFO L168 Benchmark]: Toolchain (without parser) took 43984.32 ms. Allocated memory was 147.8 MB in the beginning and 801.1 MB in the end (delta: 653.3 MB). Free memory was 103.0 MB in the beginning and 361.0 MB in the end (delta: -258.0 MB). Peak memory consumption was 395.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:03,295 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 07:01:03,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.28 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 169.7 MB in the end (delta: -67.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:03,304 INFO L168 Benchmark]: Boogie Preprocessor took 88.30 ms. Allocated memory is still 205.0 MB. Free memory was 169.7 MB in the beginning and 164.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:03,305 INFO L168 Benchmark]: RCFGBuilder took 1137.79 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 164.9 MB in the beginning and 186.2 MB in the end (delta: -21.3 MB). Peak memory consumption was 75.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:03,306 INFO L168 Benchmark]: TraceAbstraction took 42116.31 ms. Allocated memory was 233.3 MB in the beginning and 801.1 MB in the end (delta: 567.8 MB). Free memory was 186.2 MB in the beginning and 361.0 MB in the end (delta: -174.8 MB). Peak memory consumption was 393.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:01:03,314 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.28 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 169.7 MB in the end (delta: -67.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.30 ms. Allocated memory is still 205.0 MB. Free memory was 169.7 MB in the beginning and 164.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1137.79 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 164.9 MB in the beginning and 186.2 MB in the end (delta: -21.3 MB). Peak memory consumption was 75.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42116.31 ms. Allocated memory was 233.3 MB in the beginning and 801.1 MB in the end (delta: 567.8 MB). Free memory was 186.2 MB in the beginning and 361.0 MB in the end (delta: -174.8 MB). Peak memory consumption was 393.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: 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; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; [L921] int retValue_acc ; [L922] int tmp ; [L926] FCALL select_helpers() [L927] FCALL select_features() [L928] CALL, EXPR valid_product() [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] return (retValue_acc); [L928] RET, EXPR valid_product() [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L932] FCALL setup() [L933] CALL runTest() [L915] CALL test() [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) [L569] CALL waterRise() [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 [L569] RET waterRise() [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp___0) [L579] CALL changeMethaneLevel() [L480] COND FALSE !(\read(methaneLevelCritical)) [L483] methaneLevelCritical = 1 [L579] RET changeMethaneLevel() [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L602] CALL timeShift() [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L633] CALL processEnvironment() [L679] int tmp ; [L682] COND FALSE !(\read(pumpRunning)) [L697] CALL processEnvironment__wrappee__highWaterSensor() [L653] int tmp ; [L656] COND TRUE ! pumpRunning [L658] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L530] int retValue_acc ; [L533] COND FALSE !(waterLevel < 2) [L537] retValue_acc = 0 [L538] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND FALSE !(\read(tmp)) [L787] tmp___0 = 1 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L658] RET, EXPR isHighWaterLevel() [L658] tmp = isHighWaterLevel() [L660] COND TRUE \read(tmp) [L662] CALL activatePump() [L707] pumpRunning = 1 [L662] RET activatePump() [L697] RET processEnvironment__wrappee__highWaterSensor() [L633] RET processEnvironment() [L639] CALL __utac_acc__Specification1_spec__1() [L410] int tmp ; [L411] int tmp___0 ; [L415] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L415] RET, EXPR isMethaneLevelCritical() [L415] tmp = isMethaneLevelCritical() [L417] COND TRUE \read(tmp) [L419] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L419] RET, EXPR isPumpRunning() [L419] tmp___0 = isPumpRunning() [L421] COND TRUE \read(tmp___0) [L423] CALL __automaton_fail() [L439] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 857 SDtfs, 1354 SDslu, 818 SDs, 0 SdLazy, 3555 SolverSat, 848 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 160 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=859occurred in iteration=6, 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, 7 MinimizatonAttempts, 490 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 22.6s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 461 ConstructedInterpolants, 0 QuantifiedInterpolants, 136376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...