/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:18:57,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:18:57,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:18:57,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:18:57,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:18:57,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:18:57,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:18:57,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:18:57,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:18:57,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:18:57,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:18:57,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:18:57,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:18:57,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:18:57,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:18:57,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:18:57,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:18:57,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:18:57,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:18:57,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:18:57,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:18:57,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:18:57,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:18:57,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:18:58,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:18:58,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:18:58,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:18:58,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:18:58,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:18:58,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:18:58,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:18:58,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:18:58,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:18:58,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:18:58,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:18:58,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:18:58,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:18:58,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:18:58,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:18:58,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:18:58,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:18:58,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:18:58,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:18:58,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:18:58,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:18:58,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:18:58,062 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:18:58,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:18:58,063 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:18:58,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:18:58,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:18:58,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:18:58,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:18:58,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:18:58,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:18:58,065 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:18:58,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:18:58,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:18:58,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:18:58,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:18:58,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:18:58,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:18:58,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:18:58,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:18:58,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:18:58,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:18:58,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:18:58,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:18:58,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:18:58,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:18:58,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:18:58,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:18:58,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:18:58,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:18:58,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:18:58,534 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:18:58,534 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:18:58,535 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product04.cil.c [2020-09-25 06:18:58,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a95ececdc/a6e7eb6526f248ee8afc1544d8559ea5/FLAG8c17dbfd7 [2020-09-25 06:18:59,234 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:18:59,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product04.cil.c [2020-09-25 06:18:59,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a95ececdc/a6e7eb6526f248ee8afc1544d8559ea5/FLAG8c17dbfd7 [2020-09-25 06:18:59,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a95ececdc/a6e7eb6526f248ee8afc1544d8559ea5 [2020-09-25 06:18:59,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:18:59,500 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:18:59,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:59,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:18:59,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:18:59,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:59" (1/1) ... [2020-09-25 06:18:59,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:59, skipping insertion in model container [2020-09-25 06:18:59,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:59" (1/1) ... [2020-09-25 06:18:59,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:18:59,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:19:00,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:00,038 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:19:00,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:00,160 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:19:00,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00 WrapperNode [2020-09-25 06:19:00,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:19:00,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:19:00,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:19:00,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:19:00,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... [2020-09-25 06:19:00,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... [2020-09-25 06:19:00,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... [2020-09-25 06:19:00,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... [2020-09-25 06:19:00,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... [2020-09-25 06:19:00,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... [2020-09-25 06:19:00,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... [2020-09-25 06:19:00,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:19:00,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:19:00,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:19:00,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:19:00,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:19:00,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:19:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:19:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:19:00,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:19:00,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:19:00,353 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:19:00,353 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:19:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:19:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:19:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:19:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:19:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:19:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:19:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:19:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:19:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:19:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:19:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:19:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:19:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:19:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:19:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:19:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:19:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:19:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:19:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:19:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:19:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:19:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:19:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:19:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:19:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:00,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:19:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:19:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:19:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:19:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:19:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:19:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:19:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:19:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:19:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:19:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:19:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:19:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:19:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:19:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:19:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:19:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:19:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:19:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:19:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:19:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:19:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:19:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:19:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:19:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:19:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:19:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:19:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:19:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:19:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:19:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:19:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:19:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:19:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:19:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:19:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:19:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:19:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:19:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:19:01,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:19:01,539 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:19:01,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:01 BoogieIcfgContainer [2020-09-25 06:19:01,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:19:01,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:19:01,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:19:01,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:19:01,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:18:59" (1/3) ... [2020-09-25 06:19:01,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6441b81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:01, skipping insertion in model container [2020-09-25 06:19:01,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:00" (2/3) ... [2020-09-25 06:19:01,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6441b81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:01, skipping insertion in model container [2020-09-25 06:19:01,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:01" (3/3) ... [2020-09-25 06:19:01,561 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product04.cil.c [2020-09-25 06:19:01,573 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:19:01,585 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:19:01,608 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:19:01,641 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:19:01,641 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:19:01,641 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:19:01,641 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:19:01,642 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:19:01,642 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:19:01,642 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:19:01,642 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:19:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states. [2020-09-25 06:19:01,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:19:01,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:01,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:01,692 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:01,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:01,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1439262157, now seen corresponding path program 1 times [2020-09-25 06:19:01,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:01,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152210314] [2020-09-25 06:19:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:02,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:02,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:04,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:06,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:19:07,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:19:07,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:19:07,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:19:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:19:07,486 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:07,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 06:19:07,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:07,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:07,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:07,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:07,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:07,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:07,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:07,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:07,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:07,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:07,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:07,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:07,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:07,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:19:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:07,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:07,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:19:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:07,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:07,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:07,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:07,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:07,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:07,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:07,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:07,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:07,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:07,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152210314] [2020-09-25 06:19:07,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:07,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:19:07,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937476682] [2020-09-25 06:19:07,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:19:07,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:07,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:19:07,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:07,903 INFO L87 Difference]: Start difference. First operand 269 states. Second operand 4 states. [2020-09-25 06:19:09,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:09,076 INFO L93 Difference]: Finished difference Result 387 states and 462 transitions. [2020-09-25 06:19:09,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:19:09,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:19:09,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:09,109 INFO L225 Difference]: With dead ends: 387 [2020-09-25 06:19:09,110 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 06:19:09,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:09,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 06:19:09,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 212. [2020-09-25 06:19:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 06:19:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 227 transitions. [2020-09-25 06:19:09,216 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 227 transitions. Word has length 148 [2020-09-25 06:19:09,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:09,217 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 227 transitions. [2020-09-25 06:19:09,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:19:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 227 transitions. [2020-09-25 06:19:09,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:19:09,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:09,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:09,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:19:09,227 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:09,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1995914943, now seen corresponding path program 1 times [2020-09-25 06:19:09,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:09,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201710767] [2020-09-25 06:19:09,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:09,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:09,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:11,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:11,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:12,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:19:14,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:14,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:19:14,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:19:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:14,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:14,583 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:14,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:14,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 06:19:14,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:14,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:14,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:14,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:14,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:14,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:14,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:14,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:14,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:14,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:14,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:14,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:14,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:14,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:14,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:14,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:19:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:14,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:14,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:19:14,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:19:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:14,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:14,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:14,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:14,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:14,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:14,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:19:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:14,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201710767] [2020-09-25 06:19:14,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:14,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:19:14,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662815141] [2020-09-25 06:19:14,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:19:14,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:14,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:19:14,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:19:14,868 INFO L87 Difference]: Start difference. First operand 212 states and 227 transitions. Second operand 5 states. [2020-09-25 06:19:15,537 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:16,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:16,200 INFO L93 Difference]: Finished difference Result 303 states and 343 transitions. [2020-09-25 06:19:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:19:16,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:19:16,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:16,205 INFO L225 Difference]: With dead ends: 303 [2020-09-25 06:19:16,205 INFO L226 Difference]: Without dead ends: 249 [2020-09-25 06:19:16,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:19:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-25 06:19:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 202. [2020-09-25 06:19:16,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 06:19:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 214 transitions. [2020-09-25 06:19:16,242 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 214 transitions. Word has length 149 [2020-09-25 06:19:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:16,242 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 214 transitions. [2020-09-25 06:19:16,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:19:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 214 transitions. [2020-09-25 06:19:16,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:19:16,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:16,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:16,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:19:16,247 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:16,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:16,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1172868170, now seen corresponding path program 1 times [2020-09-25 06:19:16,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:16,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36675106] [2020-09-25 06:19:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:17,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:19:21,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:21,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:19:21,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:19:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:19:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:21,652 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:21,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:21,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 06:19:21,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:21,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:21,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:21,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:21,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:19:21,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:21,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:21,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:19:21,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:21,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:19:21,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:21,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:21,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:21,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:21,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:21,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:21,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:21,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:19:21,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:19:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:21,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:21,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:21,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:19:21,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:21,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:19:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:21,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:19:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:21,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:21,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:21,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:21,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:21,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:21,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:21,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:21,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:19:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:21,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36675106] [2020-09-25 06:19:21,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:21,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:19:21,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243441670] [2020-09-25 06:19:21,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:19:21,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:21,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:19:21,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:19:21,957 INFO L87 Difference]: Start difference. First operand 202 states and 214 transitions. Second operand 6 states. [2020-09-25 06:19:22,640 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:23,949 INFO L93 Difference]: Finished difference Result 452 states and 530 transitions. [2020-09-25 06:19:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:19:23,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:19:23,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:23,955 INFO L225 Difference]: With dead ends: 452 [2020-09-25 06:19:23,955 INFO L226 Difference]: Without dead ends: 365 [2020-09-25 06:19:23,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:19:23,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-09-25 06:19:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 273. [2020-09-25 06:19:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 06:19:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-25 06:19:24,007 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 162 [2020-09-25 06:19:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:24,008 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-25 06:19:24,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:19:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-25 06:19:24,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 06:19:24,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:24,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:24,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:19:24,012 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:24,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:24,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1570168867, now seen corresponding path program 1 times [2020-09-25 06:19:24,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:24,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665140710] [2020-09-25 06:19:24,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:25,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:19:29,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:19:29,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 06:19:29,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:19:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:19:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:19:29,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:29,353 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:29,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:29,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 06:19:29,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:29,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:29,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:29,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:29,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:29,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:29,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:29,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:29,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:29,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:19:29,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:29,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:29,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:19:29,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:29,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:29,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:29,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:29,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:29,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:19:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:29,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:19:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:29,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:29,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:19:29,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:19:29,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:19:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:29,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:29,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:29,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:29,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:19:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:29,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:29,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:29,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:29,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 06:19:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:29,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:29,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:29,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:29,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:29,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:29,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:29,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:29,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665140710] [2020-09-25 06:19:29,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:29,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:19:29,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916841285] [2020-09-25 06:19:29,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:19:29,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:29,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:19:29,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:19:29,677 INFO L87 Difference]: Start difference. First operand 273 states and 296 transitions. Second operand 6 states. [2020-09-25 06:19:30,190 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:31,821 INFO L93 Difference]: Finished difference Result 607 states and 740 transitions. [2020-09-25 06:19:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:19:31,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 06:19:31,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:31,828 INFO L225 Difference]: With dead ends: 607 [2020-09-25 06:19:31,828 INFO L226 Difference]: Without dead ends: 604 [2020-09-25 06:19:31,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:19:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-09-25 06:19:31,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 434. [2020-09-25 06:19:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-09-25 06:19:31,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 483 transitions. [2020-09-25 06:19:31,933 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 483 transitions. Word has length 165 [2020-09-25 06:19:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:31,934 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 483 transitions. [2020-09-25 06:19:31,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:19:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 483 transitions. [2020-09-25 06:19:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 06:19:31,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:31,939 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:31,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:19:31,939 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:31,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:31,940 INFO L82 PathProgramCache]: Analyzing trace with hash 432070445, now seen corresponding path program 1 times [2020-09-25 06:19:31,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:31,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615444076] [2020-09-25 06:19:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:32,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:34,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 06:19:37,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:19:37,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 06:19:37,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 06:19:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:19:37,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,352 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:37,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:37,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 06:19:37,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:37,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:37,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:37,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:37,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:37,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:37,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:19:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:37,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:37,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:19:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 06:19:37,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:37,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 06:19:37,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:37,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 06:19:37,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:37,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:19:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:19:37,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 06:19:37,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:19:37,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:37,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:19:37,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:19:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:37,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:37,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:19:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:19:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 06:19:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:37,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:37,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:19:37,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 06:19:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:37,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:19:37,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 06:19:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:37,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:37,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 06:19:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:37,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:37,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:37,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:37,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:37,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:37,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:37,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:37,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 06:19:37,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615444076] [2020-09-25 06:19:37,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:19:37,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 06:19:37,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443551425] [2020-09-25 06:19:37,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:19:37,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:37,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:19:37,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:19:37,880 INFO L87 Difference]: Start difference. First operand 434 states and 483 transitions. Second operand 11 states. [2020-09-25 06:19:39,116 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:39,942 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:40,246 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:19:40,592 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:40,912 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:41,232 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 06:19:41,527 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 06:19:41,848 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:42,148 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:42,440 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 06:19:42,805 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 06:19:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:43,688 INFO L93 Difference]: Finished difference Result 1092 states and 1332 transitions. [2020-09-25 06:19:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 06:19:43,689 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 218 [2020-09-25 06:19:43,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:43,695 INFO L225 Difference]: With dead ends: 1092 [2020-09-25 06:19:43,695 INFO L226 Difference]: Without dead ends: 773 [2020-09-25 06:19:43,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-09-25 06:19:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-09-25 06:19:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 603. [2020-09-25 06:19:43,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 06:19:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 680 transitions. [2020-09-25 06:19:43,797 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 680 transitions. Word has length 218 [2020-09-25 06:19:43,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:43,797 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 680 transitions. [2020-09-25 06:19:43,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:19:43,798 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 680 transitions. [2020-09-25 06:19:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 06:19:43,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:43,802 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:43,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:19:43,802 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:43,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:43,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1183545641, now seen corresponding path program 1 times [2020-09-25 06:19:43,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:43,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649478808] [2020-09-25 06:19:43,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:43,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:44,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:46,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:48,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:48,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-25 06:19:48,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:19:48,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 06:19:48,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:48,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:48,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:48,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 06:19:48,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 06:19:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0