/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:19:12,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:19:12,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:19:12,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:19:12,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:19:12,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:19:12,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:19:12,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:19:12,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:19:12,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:19:12,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:19:12,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:19:12,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:19:12,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:19:12,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:19:12,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:19:12,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:19:12,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:19:12,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:19:12,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:19:12,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:19:12,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:19:12,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:19:12,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:19:12,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:19:12,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:19:12,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:19:12,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:19:12,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:19:12,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:19:12,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:19:12,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:19:12,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:19:12,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:19:12,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:19:12,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:19:12,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:19:12,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:19:12,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:19:12,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:19:12,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:19:12,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:19:13,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:19:13,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:19:13,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:19:13,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:19:13,029 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:19:13,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:19:13,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:19:13,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:19:13,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:19:13,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:19:13,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:19:13,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:19:13,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:19:13,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:19:13,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:19:13,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:19:13,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:19:13,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:19:13,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:19:13,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:19:13,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:19:13,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:19:13,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:19:13,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:19:13,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:19:13,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:19:13,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:19:13,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:19:13,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:19:13,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:19:13,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:19:13,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:19:13,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:19:13,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:19:13,525 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:19:13,526 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-24 20:19:13,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eda51574/4233fb99a42146fe9781be8164222804/FLAG988e2db7b [2020-09-24 20:19:14,251 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:19:14,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-24 20:19:14,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eda51574/4233fb99a42146fe9781be8164222804/FLAG988e2db7b [2020-09-24 20:19:14,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eda51574/4233fb99a42146fe9781be8164222804 [2020-09-24 20:19:14,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:19:14,485 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:19:14,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:19:14,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:19:14,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:19:14,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:19:14" (1/1) ... [2020-09-24 20:19:14,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef5dd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:14, skipping insertion in model container [2020-09-24 20:19:14,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:19:14" (1/1) ... [2020-09-24 20:19:14,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:19:14,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:19:15,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:19:15,054 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:19:15,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:19:15,186 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:19:15,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15 WrapperNode [2020-09-24 20:19:15,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:19:15,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:19:15,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:19:15,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:19:15,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... [2020-09-24 20:19:15,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... [2020-09-24 20:19:15,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... [2020-09-24 20:19:15,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... [2020-09-24 20:19:15,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... [2020-09-24 20:19:15,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... [2020-09-24 20:19:15,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... [2020-09-24 20:19:15,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:19:15,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:19:15,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:19:15,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:19:15,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:19:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:19:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:19:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:19:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:19:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:19:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:19:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:19:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:19:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:19:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:19:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:19:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:19:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:19:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:19:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:19:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:19:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:19:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:19:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:19:15,481 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:19:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:19:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:19:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:19:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:19:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:19:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:19:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:19:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:19:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:19:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:19:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:19:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:19:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:19:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:19:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:19:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:19:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:19:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:19:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:19:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:19:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:19:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:19:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:19:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:19:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:19:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:19:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:19:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:19:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:19:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:19:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:19:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:19:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:19:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:19:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:19:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:19:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:19:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:19:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:19:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:19:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:19:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:19:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:19:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:19:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:19:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:19:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:19:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:19:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:19:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:19:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:19:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:19:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:19:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:19:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:19:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:19:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:19:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:19:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:19:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:19:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:19:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:19:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:19:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:19:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:19:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:19:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:19:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:19:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:19:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:19:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:19:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:19:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:19:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:19:16,727 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:19:16,728 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:19:16,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:19:16 BoogieIcfgContainer [2020-09-24 20:19:16,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:19:16,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:19:16,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:19:16,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:19:16,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:19:14" (1/3) ... [2020-09-24 20:19:16,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c79561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:19:16, skipping insertion in model container [2020-09-24 20:19:16,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:19:15" (2/3) ... [2020-09-24 20:19:16,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c79561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:19:16, skipping insertion in model container [2020-09-24 20:19:16,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:19:16" (3/3) ... [2020-09-24 20:19:16,745 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-09-24 20:19:16,758 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:19:16,771 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:19:16,795 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:19:16,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:19:16,834 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:19:16,835 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:19:16,835 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:19:16,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:19:16,835 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:19:16,835 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:19:16,835 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:19:16,868 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-24 20:19:16,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 20:19:16,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:16,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:16,891 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:16,900 INFO L82 PathProgramCache]: Analyzing trace with hash -956249494, now seen corresponding path program 1 times [2020-09-24 20:19:16,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:16,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097050377] [2020-09-24 20:19:16,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:17,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:17,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:19,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:22,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:22,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 20:19:22,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:19:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 20:19:22,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:22,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:19:22,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:19:22,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 20:19:22,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:19:22,761 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:22,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:22,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-24 20:19:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:19:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:23,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:23,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:23,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:23,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:23,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:23,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:19:23,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:23,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:23,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:23,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:23,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:23,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:19:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:19:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:23,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:19:23,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:19:23,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:23,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:23,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:19:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:23,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:19:23,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:23,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:19:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:23,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:23,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:23,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:23,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:23,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:19:23,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:23,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:23,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:23,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:19:23,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097050377] [2020-09-24 20:19:23,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:19:23,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:19:23,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294539676] [2020-09-24 20:19:23,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:19:23,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:23,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:19:23,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:19:23,444 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 9 states. [2020-09-24 20:19:24,077 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:24,888 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:25,229 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:26,603 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:26,899 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:27,285 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:27,920 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:28,267 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:28,603 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:19:28,972 INFO L93 Difference]: Finished difference Result 561 states and 684 transitions. [2020-09-24 20:19:28,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:19:28,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 20:19:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:19:29,000 INFO L225 Difference]: With dead ends: 561 [2020-09-24 20:19:29,000 INFO L226 Difference]: Without dead ends: 385 [2020-09-24 20:19:29,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:19:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-09-24 20:19:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 336. [2020-09-24 20:19:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-24 20:19:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 377 transitions. [2020-09-24 20:19:29,132 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 377 transitions. Word has length 160 [2020-09-24 20:19:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:19:29,133 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 377 transitions. [2020-09-24 20:19:29,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:19:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 377 transitions. [2020-09-24 20:19:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 20:19:29,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:29,140 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:29,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:19:29,141 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:29,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:29,142 INFO L82 PathProgramCache]: Analyzing trace with hash 640183005, now seen corresponding path program 1 times [2020-09-24 20:19:29,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:29,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734997966] [2020-09-24 20:19:29,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:29,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:29,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 20:19:31,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:19:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2241 [2020-09-24 20:19:31,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:19:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 20:19:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:19:31,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,728 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:31,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:31,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 20:19:31,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:31,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:31,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:31,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:31,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:31,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:19:31,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:31,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:19:31,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:31,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:19:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:31,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:31,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:31,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:31,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:31,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:31,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:31,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:31,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:19:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:31,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:32,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:19:32,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:32,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 20:19:32,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:19:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:19:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:19:32,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:32,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:32,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:32,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:19:32,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:32,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:19:32,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:32,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:19:32,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:19:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:32,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:32,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:19:32,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:32,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:32,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:32,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:19:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:32,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:32,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:32,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:19:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:32,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:19:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:32,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:32,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:32,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:32,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:32,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:32,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:19:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:32,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:32,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:32,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:32,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:32,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:32,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:19:32,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734997966] [2020-09-24 20:19:32,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:19:32,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:19:32,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370387530] [2020-09-24 20:19:32,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:19:32,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:32,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:19:32,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:19:32,291 INFO L87 Difference]: Start difference. First operand 336 states and 377 transitions. Second operand 10 states. [2020-09-24 20:19:33,984 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:34,306 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:34,639 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:19:35,031 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:35,393 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:19:35,708 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:36,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:19:36,318 INFO L93 Difference]: Finished difference Result 649 states and 782 transitions. [2020-09-24 20:19:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:19:36,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 20:19:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:19:36,327 INFO L225 Difference]: With dead ends: 649 [2020-09-24 20:19:36,328 INFO L226 Difference]: Without dead ends: 428 [2020-09-24 20:19:36,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:19:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-24 20:19:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 350. [2020-09-24 20:19:36,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-24 20:19:36,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 394 transitions. [2020-09-24 20:19:36,391 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 394 transitions. Word has length 194 [2020-09-24 20:19:36,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:19:36,392 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 394 transitions. [2020-09-24 20:19:36,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:19:36,393 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 394 transitions. [2020-09-24 20:19:36,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 20:19:36,397 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:19:36,398 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:19:36,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:19:36,398 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:19:36,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:19:36,399 INFO L82 PathProgramCache]: Analyzing trace with hash 132380341, now seen corresponding path program 1 times [2020-09-24 20:19:36,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:19:36,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482517911] [2020-09-24 20:19:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:19:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:36,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:36,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:37,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:38,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:41,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:41,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-24 20:19:41,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:19:41,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 20:19:41,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:41,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:19:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:19:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 20:19:41,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:41,780 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:19:41,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:41,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:19:42,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-24 20:19:42,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:19:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:19:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:42,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:42,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:42,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:19:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:42,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:42,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:42,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:19:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:42,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:19:42,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:42,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:42,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:42,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:19:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:19:42,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:42,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:42,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:19:42,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:19:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:42,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:19:42,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:19:42,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:19:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 20:19:42,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 20:19:42,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:19:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:19:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 20:19:42,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:42,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:42,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:19:42,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:19:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:19:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:42,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:19:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:19:42,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:19:42,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:19:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:19:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:42,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:42,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:19:42,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:19:42,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:19:42,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:42,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:19:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:19:42,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:42,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:19:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:42,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:19:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:42,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:42,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:42,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:42,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:19:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:19:42,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:19:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 20:19:42,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:42,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:19:42,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:19:42,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:19:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:19:42,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 20:19:42,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:19:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:19:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:19:42,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:19:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:19:42,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:19:42,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:19:42,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:19:42,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:19:42,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:19:42,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:19:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:19:42,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:19:42,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:42,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:19:42,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:42,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 20:19:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:42,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:42,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 20:19:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:19:42,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:19:42,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:19:42,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:19:42,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:19:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:19:42,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:19:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:19:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:19:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:19:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:19:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 20:19:42,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482517911] [2020-09-24 20:19:42,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:19:42,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:19:42,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498629147] [2020-09-24 20:19:42,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:19:42,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:19:42,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:19:42,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:19:42,829 INFO L87 Difference]: Start difference. First operand 350 states and 394 transitions. Second operand 19 states. [2020-09-24 20:19:43,476 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:45,139 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:45,503 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:45,966 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:46,323 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:46,632 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:46,951 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:47,270 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:47,615 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:47,964 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:19:48,307 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:48,644 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:48,961 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:49,319 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:49,690 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:19:50,012 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:19:50,358 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:51,010 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:51,345 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:19:52,249 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 20:19:54,057 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:54,698 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:19:55,354 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:19:56,033 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:19:58,457 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:58,775 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:19:59,124 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:19:59,462 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:01,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:01,275 INFO L93 Difference]: Finished difference Result 1451 states and 2007 transitions. [2020-09-24 20:20:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-09-24 20:20:01,277 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 230 [2020-09-24 20:20:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:01,288 INFO L225 Difference]: With dead ends: 1451 [2020-09-24 20:20:01,289 INFO L226 Difference]: Without dead ends: 1176 [2020-09-24 20:20:01,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1361 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=883, Invalid=3947, Unknown=0, NotChecked=0, Total=4830 [2020-09-24 20:20:01,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2020-09-24 20:20:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 930. [2020-09-24 20:20:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-09-24 20:20:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1102 transitions. [2020-09-24 20:20:01,451 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1102 transitions. Word has length 230 [2020-09-24 20:20:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:01,452 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1102 transitions. [2020-09-24 20:20:01,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:20:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1102 transitions. [2020-09-24 20:20:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 20:20:01,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:01,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:20:01,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:20:01,457 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:01,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:01,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1214904163, now seen corresponding path program 1 times [2020-09-24 20:20:01,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:01,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47778916] [2020-09-24 20:20:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:01,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:06,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:06,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 20:20:06,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:20:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 20:20:06,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:20:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:20:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-24 20:20:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0