/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:24:17,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:24:17,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:24:18,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:24:18,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:24:18,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:24:18,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:24:18,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:24:18,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:24:18,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:24:18,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:24:18,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:24:18,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:24:18,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:24:18,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:24:18,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:24:18,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:24:18,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:24:18,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:24:18,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:24:18,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:24:18,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:24:18,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:24:18,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:24:18,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:24:18,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:24:18,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:24:18,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:24:18,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:24:18,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:24:18,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:24:18,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:24:18,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:24:18,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:24:18,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:24:18,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:24:18,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:24:18,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:24:18,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:24:18,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:24:18,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:24:18,063 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 22:24:18,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:24:18,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:24:18,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:24:18,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:24:18,093 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:24:18,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:24:18,094 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:24:18,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:24:18,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:24:18,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:24:18,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:24:18,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:24:18,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:24:18,095 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:24:18,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:24:18,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:24:18,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:24:18,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:24:18,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:24:18,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:24:18,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:24:18,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:24:18,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:24:18,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:24:18,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:24:18,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:24:18,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:24:18,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:24:18,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:24:18,098 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:24:18,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:24:18,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:24:18,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:24:18,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:24:18,636 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:24:18,637 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-24 22:24:18,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a488421eb/14779f8359e54718acba0f000b223fbc/FLAGf1d4df81e [2020-09-24 22:24:19,394 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:24:19,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-24 22:24:19,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a488421eb/14779f8359e54718acba0f000b223fbc/FLAGf1d4df81e [2020-09-24 22:24:19,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a488421eb/14779f8359e54718acba0f000b223fbc [2020-09-24 22:24:19,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:24:19,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:24:19,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:24:19,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:24:19,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:24:19,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:24:19" (1/1) ... [2020-09-24 22:24:19,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e0a100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:19, skipping insertion in model container [2020-09-24 22:24:19,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:24:19" (1/1) ... [2020-09-24 22:24:19,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:24:19,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:24:20,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:24:20,294 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:24:20,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:24:20,471 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:24:20,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20 WrapperNode [2020-09-24 22:24:20,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:24:20,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:24:20,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:24:20,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:24:20,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (1/1) ... [2020-09-24 22:24:20,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (1/1) ... [2020-09-24 22:24:20,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (1/1) ... [2020-09-24 22:24:20,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (1/1) ... [2020-09-24 22:24:20,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (1/1) ... [2020-09-24 22:24:20,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (1/1) ... [2020-09-24 22:24:20,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (1/1) ... [2020-09-24 22:24:20,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:24:20,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:24:20,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:24:20,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:24:20,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (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 22:24:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:24:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:24:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:24:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:24:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:24:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:24:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:24:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:24:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:24:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:24:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:24:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:24:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:24:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:24:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:24:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:24:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:24:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:24:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:24:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:24:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:24:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:24:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:24:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:24:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:24:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:24:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:24:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:24:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:24:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:24:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:24:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:24:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:24:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:24:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:24:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:24:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:24:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:24:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:24:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:24:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:24:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:24:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:24:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:24:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:24:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:24:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:24:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:24:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:24:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:24:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:24:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:24:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:24:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:24:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:24:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:24:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:24:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:24:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:24:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:24:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:24:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:24:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:24:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:24:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:24:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:24:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:24:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:24:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:24:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:24:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:24:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:24:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:24:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:24:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:24:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:24:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:24:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:24:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:24:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:24:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:24:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:24:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:24:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:24:20,739 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:24:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:24:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:24:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:24:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:24:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:24:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:24:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:24:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:24:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:24:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:24:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:24:22,057 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:24:22,058 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:24:22,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:24:22 BoogieIcfgContainer [2020-09-24 22:24:22,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:24:22,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:24:22,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:24:22,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:24:22,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:24:19" (1/3) ... [2020-09-24 22:24:22,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d73d0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:24:22, skipping insertion in model container [2020-09-24 22:24:22,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:20" (2/3) ... [2020-09-24 22:24:22,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d73d0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:24:22, skipping insertion in model container [2020-09-24 22:24:22,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:24:22" (3/3) ... [2020-09-24 22:24:22,076 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-09-24 22:24:22,089 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:24:22,100 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:24:22,125 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:24:22,162 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:24:22,162 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:24:22,163 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:24:22,163 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:24:22,163 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:24:22,163 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:24:22,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:24:22,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:24:22,198 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2020-09-24 22:24:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:24:22,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:22,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:22,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:22,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:22,227 INFO L82 PathProgramCache]: Analyzing trace with hash 317689357, now seen corresponding path program 1 times [2020-09-24 22:24:22,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:22,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207553767] [2020-09-24 22:24:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:22,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:23,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:24,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:24,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:27,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:24:27,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:24:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-24 22:24:27,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:27,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:24:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:24:27,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 22:24:28,188 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:28,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:28,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:28,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:28,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:28,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:28,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 22:24:28,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:28,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:28,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:28,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:28,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:28,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:28,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:28,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:28,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:28,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:28,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:28,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:28,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:28,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:28,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:28,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:28,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:28,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:24:28,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:28,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:28,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:28,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:28,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:28,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:28,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:28,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:28,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:28,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:28,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:28,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:28,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:28,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:28,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:28,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:28,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:28,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:24:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:28,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:28,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:28,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:28,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:28,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:28,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:28,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:28,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:24:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:28,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:28,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:28,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:28,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:28,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:24:28,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:28,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:28,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:28,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207553767] [2020-09-24 22:24:28,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:28,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:24:28,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088716541] [2020-09-24 22:24:28,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:24:28,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:28,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:24:28,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:24:28,629 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 8 states. [2020-09-24 22:24:29,268 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:30,865 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 22:24:31,524 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 22:24:31,886 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:32,255 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:32,566 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:33,451 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:33,781 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:24:34,133 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:36,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:36,070 INFO L93 Difference]: Finished difference Result 661 states and 840 transitions. [2020-09-24 22:24:36,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:24:36,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:24:36,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:36,096 INFO L225 Difference]: With dead ends: 661 [2020-09-24 22:24:36,097 INFO L226 Difference]: Without dead ends: 440 [2020-09-24 22:24:36,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:24:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-24 22:24:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 381. [2020-09-24 22:24:36,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-24 22:24:36,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 434 transitions. [2020-09-24 22:24:36,278 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 434 transitions. Word has length 142 [2020-09-24 22:24:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:36,279 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 434 transitions. [2020-09-24 22:24:36,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:24:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 434 transitions. [2020-09-24 22:24:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 22:24:36,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:36,285 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:36,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:24:36,286 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:36,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:36,287 INFO L82 PathProgramCache]: Analyzing trace with hash -2009669953, now seen corresponding path program 1 times [2020-09-24 22:24:36,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:36,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660421971] [2020-09-24 22:24:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:36,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:36,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:36,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 22:24:41,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:24:41,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-24 22:24:41,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-24 22:24:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:41,671 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:41,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:41,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 22:24:41,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:41,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:41,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:41,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:41,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:41,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:41,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:41,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:41,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:41,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:41,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:41,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:41,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:24:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:24:41,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:41,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:41,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:24:41,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:41,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:41,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:41,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:41,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:41,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:41,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:24:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:41,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:41,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:41,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:24:41,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 22:24:41,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:24:41,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:41,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:42,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:42,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:42,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:42,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 22:24:42,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:42,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:24:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:42,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 38 [2020-09-24 22:24:42,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:42,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:42,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:42,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 22:24:42,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:24:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:42,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:42,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:42,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:42,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:42,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 22:24:42,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:42,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:42,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:42,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:24:42,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:42,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:42,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:42,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:42,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:42,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:42,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:42,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:24:42,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:42,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 22:24:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:42,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:42,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:42,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:42,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:42,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 22:24:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:42,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:42,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:42,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:42,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:42,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:42,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:24:42,410 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:24:42,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660421971] [2020-09-24 22:24:42,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:24:42,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:24:42,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778063876] [2020-09-24 22:24:42,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:24:42,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:42,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:24:42,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:24:42,418 INFO L87 Difference]: Start difference. First operand 381 states and 434 transitions. Second operand 10 states. [2020-09-24 22:24:43,840 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:44,174 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:44,483 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:44,791 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:45,112 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:45,411 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:46,736 INFO L93 Difference]: Finished difference Result 771 states and 961 transitions. [2020-09-24 22:24:46,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:24:46,739 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2020-09-24 22:24:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:46,746 INFO L225 Difference]: With dead ends: 771 [2020-09-24 22:24:46,746 INFO L226 Difference]: Without dead ends: 500 [2020-09-24 22:24:46,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:24:46,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-09-24 22:24:46,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 389. [2020-09-24 22:24:46,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-09-24 22:24:46,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 442 transitions. [2020-09-24 22:24:46,815 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 442 transitions. Word has length 210 [2020-09-24 22:24:46,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:46,816 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 442 transitions. [2020-09-24 22:24:46,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:24:46,816 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 442 transitions. [2020-09-24 22:24:46,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 22:24:46,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:46,820 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:46,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:24:46,820 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:46,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:46,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1596038561, now seen corresponding path program 1 times [2020-09-24 22:24:46,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:46,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439186645] [2020-09-24 22:24:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:46,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:47,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:51,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:51,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 22:24:51,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:24:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 22:24:51,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:51,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-24 22:24:51,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:51,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:52,244 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:52,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:52,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 22:24:52,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:52,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:52,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:52,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:52,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:52,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:52,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:52,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:52,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:24:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:24:52,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:52,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:24:52,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:52,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:52,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:24:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:24:52,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:24:52,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:52,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 22:24:52,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:52,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 22:24:52,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:24:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:52,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:52,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 22:24:52,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:24:52,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:52,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:52,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:52,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 22:24:52,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:24:52,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:52,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:52,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:52,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:52,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:24:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:52,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:52,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:24:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:52,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 22:24:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:52,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:52,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 22:24:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:52,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:52,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:52,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:52,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:52,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:52,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:24:52,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439186645] [2020-09-24 22:24:52,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:24:52,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 22:24:52,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918063520] [2020-09-24 22:24:52,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:24:52,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:52,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:24:52,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:24:52,927 INFO L87 Difference]: Start difference. First operand 389 states and 442 transitions. Second operand 9 states. [2020-09-24 22:24:54,254 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:54,552 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:54,899 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:55,250 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:55,555 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:56,947 INFO L93 Difference]: Finished difference Result 785 states and 1004 transitions. [2020-09-24 22:24:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:24:56,948 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2020-09-24 22:24:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:56,953 INFO L225 Difference]: With dead ends: 785 [2020-09-24 22:24:56,953 INFO L226 Difference]: Without dead ends: 506 [2020-09-24 22:24:56,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-24 22:24:56,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-09-24 22:24:57,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 395. [2020-09-24 22:24:57,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-24 22:24:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 448 transitions. [2020-09-24 22:24:57,023 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 448 transitions. Word has length 210 [2020-09-24 22:24:57,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:57,024 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 448 transitions. [2020-09-24 22:24:57,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:24:57,024 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 448 transitions. [2020-09-24 22:24:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 22:24:57,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:57,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:57,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:24:57,028 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:57,028 INFO L82 PathProgramCache]: Analyzing trace with hash -25680054, now seen corresponding path program 1 times [2020-09-24 22:24:57,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:57,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717032191] [2020-09-24 22:24:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:57,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:57,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 22:25:02,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:25:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 22:25:02,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:25:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:25:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:25:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:25:02,445 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:25:02,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:25:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:25:02,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 22:25:02,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:25:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:25:02,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:25:02,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:25:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:25:02,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:25:02,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:25:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:25:02,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:25:02,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:25:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:25:02,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:25:02,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:25:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:25:02,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:25:02,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 22:25:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:25:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:25:02,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:25:02,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:25:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:25:02,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:25:02,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:25:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:25:02,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:25:02,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:25:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:25:02,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:25:02,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:25:02,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:25:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:25:02,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:25:02,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:25:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 22:25:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:25:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:25:02,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:25:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 22:25:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:25:02,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:25:02,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:25:02,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:25:02,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:25:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:25:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:25:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:25:02,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:25:02,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:25:02,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717032191] [2020-09-24 22:25:02,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:25:02,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:25:02,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781697030] [2020-09-24 22:25:02,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:25:02,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:25:02,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:25:02,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:25:02,854 INFO L87 Difference]: Start difference. First operand 395 states and 448 transitions. Second operand 5 states. [2020-09-24 22:25:03,746 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:25:05,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:25:05,015 INFO L93 Difference]: Finished difference Result 663 states and 766 transitions. [2020-09-24 22:25:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:25:05,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-09-24 22:25:05,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:25:05,019 INFO L225 Difference]: With dead ends: 663 [2020-09-24 22:25:05,019 INFO L226 Difference]: Without dead ends: 438 [2020-09-24 22:25:05,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:25:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-09-24 22:25:05,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 375. [2020-09-24 22:25:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 22:25:05,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 414 transitions. [2020-09-24 22:25:05,087 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 414 transitions. Word has length 186 [2020-09-24 22:25:05,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:25:05,087 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 414 transitions. [2020-09-24 22:25:05,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:25:05,087 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 414 transitions. [2020-09-24 22:25:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 22:25:05,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:25:05,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:25:05,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:25:05,091 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:25:05,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:25:05,091 INFO L82 PathProgramCache]: Analyzing trace with hash 2020865618, now seen corresponding path program 1 times [2020-09-24 22:25:05,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:25:05,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587333725] [2020-09-24 22:25:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:25:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:05,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:05,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking...