/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=LOWLEXORDER --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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:16:35,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:16:35,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:16:35,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:16:35,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:16:35,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:16:35,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:16:35,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:16:35,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:16:35,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:16:35,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:16:35,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:16:35,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:16:35,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:16:35,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:16:35,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:16:35,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:16:35,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:16:35,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:16:35,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:16:35,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:16:35,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:16:35,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:16:35,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:16:35,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:16:35,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:16:35,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:16:35,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:16:35,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:16:35,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:16:35,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:16:35,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:16:35,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:16:35,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:16:35,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:16:35,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:16:35,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:16:35,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:16:35,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:16:35,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:16:35,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:16:35,138 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 21:16:35,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:16:35,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:16:35,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:16:35,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:16:35,191 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:16:35,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:16:35,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:16:35,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:16:35,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:16:35,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:16:35,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:16:35,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:16:35,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:16:35,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:16:35,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:16:35,194 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:16:35,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:16:35,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:16:35,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:16:35,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:16:35,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:16:35,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:16:35,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:16:35,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:16:35,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:16:35,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:16:35,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:16:35,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:16:35,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:16:35,197 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:16:35,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:16:35,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:16:35,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:16:35,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:16:35,662 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:16:35,663 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-24 21:16:35,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3a497e7b/294fb44e87ae49b4bf38e6973b39d9f0/FLAGa70e5df47 [2020-09-24 21:16:36,367 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:16:36,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-24 21:16:36,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3a497e7b/294fb44e87ae49b4bf38e6973b39d9f0/FLAGa70e5df47 [2020-09-24 21:16:36,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3a497e7b/294fb44e87ae49b4bf38e6973b39d9f0 [2020-09-24 21:16:36,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:16:36,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:16:36,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:16:36,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:16:36,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:16:36,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:16:36" (1/1) ... [2020-09-24 21:16:36,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:36, skipping insertion in model container [2020-09-24 21:16:36,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:16:36" (1/1) ... [2020-09-24 21:16:36,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:16:36,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:16:37,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:16:37,163 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:16:37,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:16:37,457 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:16:37,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37 WrapperNode [2020-09-24 21:16:37,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:16:37,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:16:37,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:16:37,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:16:37,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (1/1) ... [2020-09-24 21:16:37,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (1/1) ... [2020-09-24 21:16:37,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (1/1) ... [2020-09-24 21:16:37,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (1/1) ... [2020-09-24 21:16:37,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (1/1) ... [2020-09-24 21:16:37,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (1/1) ... [2020-09-24 21:16:37,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (1/1) ... [2020-09-24 21:16:37,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:16:37,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:16:37,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:16:37,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:16:37,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (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 21:16:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:16:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:16:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:16:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:16:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:16:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:16:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:16:37,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:16:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:16:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:16:37,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:16:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:16:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:16:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:16:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:16:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:16:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:16:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:16:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:16:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:16:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:16:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:16:37,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:16:37,675 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:16:37,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:16:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:16:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:16:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:16:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:16:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:16:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:16:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:16:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:16:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:16:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:16:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:16:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:16:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:16:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:16:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:16:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:16:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:16:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:16:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:16:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:16:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:16:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:16:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:16:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:16:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:16:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:16:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:16:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:16:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:16:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:16:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:16:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:16:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:16:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:16:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:16:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:16:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:16:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:16:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:16:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:16:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:16:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:16:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:16:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:16:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:16:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:16:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:16:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:16:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:16:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:16:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:16:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:16:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:16:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:16:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:16:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:16:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:16:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:16:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:16:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:16:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:16:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:16:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:16:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:16:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:16:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:16:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:16:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:16:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:16:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:16:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:16:38,855 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:16:38,855 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:16:38,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:16:38 BoogieIcfgContainer [2020-09-24 21:16:38,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:16:38,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:16:38,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:16:38,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:16:38,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:16:36" (1/3) ... [2020-09-24 21:16:38,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed0771d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:16:38, skipping insertion in model container [2020-09-24 21:16:38,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:16:37" (2/3) ... [2020-09-24 21:16:38,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed0771d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:16:38, skipping insertion in model container [2020-09-24 21:16:38,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:16:38" (3/3) ... [2020-09-24 21:16:38,874 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-09-24 21:16:38,886 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:16:38,898 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:16:38,922 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:16:38,960 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:16:38,960 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:16:38,961 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:16:38,961 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:16:38,961 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:16:38,961 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:16:38,961 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:16:38,961 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:16:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-24 21:16:39,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:16:39,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:39,015 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 21:16:39,016 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:39,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:39,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2015468822, now seen corresponding path program 1 times [2020-09-24 21:16:39,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:39,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586986923] [2020-09-24 21:16:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:41,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:42,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:44,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:44,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:16:44,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:16:44,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 21:16:44,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:16:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:16:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 21:16:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:16:45,049 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:45,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:45,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:45,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:45,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:45,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:45,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 21:16:45,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:45,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:16:45,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:45,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:45,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:45,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:45,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:45,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:45,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:45,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:45,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:45,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:45,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:45,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:45,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:45,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:45,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:45,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:45,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:45,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:45,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:45,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:45,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:45,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:45,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:16:45,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:45,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:45,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:45,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:45,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:45,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:45,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:45,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:45,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:45,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:45,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:45,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:45,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:45,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:45,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:45,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:16:45,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:45,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:45,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:16:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:45,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:45,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:45,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:45,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:45,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:45,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:45,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:45,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:45,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:45,598 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 21:16:45,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586986923] [2020-09-24 21:16:45,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:45,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:16:45,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640240875] [2020-09-24 21:16:45,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:16:45,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:45,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:16:45,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:16:45,633 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 8 states. [2020-09-24 21:16:46,279 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:47,301 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:47,678 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:48,080 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:48,491 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:48,868 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:49,788 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:50,137 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:50,760 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:52,115 INFO L93 Difference]: Finished difference Result 673 states and 814 transitions. [2020-09-24 21:16:52,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:16:52,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:16:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:52,145 INFO L225 Difference]: With dead ends: 673 [2020-09-24 21:16:52,146 INFO L226 Difference]: Without dead ends: 451 [2020-09-24 21:16:52,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:16:52,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-24 21:16:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 395. [2020-09-24 21:16:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-24 21:16:52,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 435 transitions. [2020-09-24 21:16:52,307 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 435 transitions. Word has length 142 [2020-09-24 21:16:52,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:52,308 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 435 transitions. [2020-09-24 21:16:52,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:16:52,309 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 435 transitions. [2020-09-24 21:16:52,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 21:16:52,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:52,315 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] [2020-09-24 21:16:52,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:16:52,316 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:52,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:52,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1621046252, now seen corresponding path program 1 times [2020-09-24 21:16:52,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:52,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748803365] [2020-09-24 21:16:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:52,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:52,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:16:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:16:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4660 [2020-09-24 21:16:57,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:16:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:16:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 21:16:57,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:57,404 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:57,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:57,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 21:16:57,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:16:57,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:57,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:57,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:57,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:57,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:57,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:57,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:57,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:16:57,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:57,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:16:57,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:57,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:57,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:57,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:57,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:57,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:57,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:57,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:57,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:57,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:57,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:57,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:57,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 21:16:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:57,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:57,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:57,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:16:57,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 21:16:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:57,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:57,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:57,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:57,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:57,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:16:57,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:58,001 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 21:16:58,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748803365] [2020-09-24 21:16:58,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:58,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:16:58,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791524773] [2020-09-24 21:16:58,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:16:58,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:58,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:16:58,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:16:58,022 INFO L87 Difference]: Start difference. First operand 395 states and 435 transitions. Second operand 10 states. [2020-09-24 21:16:58,538 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:59,865 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:00,242 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:00,598 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:00,952 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:17:01,269 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:17:01,997 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:17:02,297 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:02,728 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:17:04,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:04,363 INFO L93 Difference]: Finished difference Result 1082 states and 1354 transitions. [2020-09-24 21:17:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 21:17:04,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 21:17:04,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:04,374 INFO L225 Difference]: With dead ends: 1082 [2020-09-24 21:17:04,375 INFO L226 Difference]: Without dead ends: 797 [2020-09-24 21:17:04,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:17:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-09-24 21:17:04,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 573. [2020-09-24 21:17:04,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-24 21:17:04,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 661 transitions. [2020-09-24 21:17:04,486 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 661 transitions. Word has length 161 [2020-09-24 21:17:04,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:04,487 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 661 transitions. [2020-09-24 21:17:04,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:17:04,488 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 661 transitions. [2020-09-24 21:17:04,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-24 21:17:04,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:04,492 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:04,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:17:04,493 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:04,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:04,493 INFO L82 PathProgramCache]: Analyzing trace with hash -304283484, now seen corresponding path program 1 times [2020-09-24 21:17:04,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:04,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843524289] [2020-09-24 21:17:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:04,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:04,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:04,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:04,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:05,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:05,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:05,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-09-24 21:17:09,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:17:09,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 21:17:09,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 21:17:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 21:17:09,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:09,855 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:09,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:09,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:09,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 21:17:09,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:09,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:09,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:10,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:10,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:10,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:10,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:10,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:10,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:17:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:17:10,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:10,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:10,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:17:10,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:17:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:10,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:10,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:10,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:10,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 21:17:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:17:10,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:17:10,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:10,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 21:17:10,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:17:10,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:10,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:17:10,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 21:17:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:17:10,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:10,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:17:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:17:10,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:10,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:17:10,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 21:17:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:17:10,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:17:10,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 21:17:10,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:17:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:17:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:17:10,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:17:10,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:17:10,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:17:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:17:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:17:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:17:10,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:17:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:10,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:10,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:10,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:17:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-24 21:17:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:10,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:10,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-24 21:17:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:10,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:10,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:10,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:10,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:10,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:10,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-24 21:17:10,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843524289] [2020-09-24 21:17:10,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:10,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 21:17:10,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396198565] [2020-09-24 21:17:10,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 21:17:10,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:10,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 21:17:10,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:17:10,574 INFO L87 Difference]: Start difference. First operand 573 states and 661 transitions. Second operand 13 states. [2020-09-24 21:17:11,435 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:12,761 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:17:13,077 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:17:13,405 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:17:13,734 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:14,049 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:14,345 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:15,763 INFO L93 Difference]: Finished difference Result 1492 states and 1924 transitions. [2020-09-24 21:17:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 21:17:15,763 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 248 [2020-09-24 21:17:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:15,780 INFO L225 Difference]: With dead ends: 1492 [2020-09-24 21:17:15,780 INFO L226 Difference]: Without dead ends: 1029 [2020-09-24 21:17:15,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=267, Invalid=993, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 21:17:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2020-09-24 21:17:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 569. [2020-09-24 21:17:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-09-24 21:17:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 643 transitions. [2020-09-24 21:17:15,909 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 643 transitions. Word has length 248 [2020-09-24 21:17:15,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:15,911 INFO L479 AbstractCegarLoop]: Abstraction has 569 states and 643 transitions. [2020-09-24 21:17:15,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 21:17:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 643 transitions. [2020-09-24 21:17:15,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 21:17:15,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:15,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:15,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:17:15,915 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:15,916 INFO L82 PathProgramCache]: Analyzing trace with hash -2037893768, now seen corresponding path program 1 times [2020-09-24 21:17:15,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:15,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116526295] [2020-09-24 21:17:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:16,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:16,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:16,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 21:17:16,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 701 [2020-09-24 21:17:16,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 21:17:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:16,949 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:16,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:16,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:17,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 21:17:17,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:17,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:17,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:17,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:17:17,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:17,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:17,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:17,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:17:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:17:17,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:17,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:17:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:17,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:17,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:17:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:17:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 21:17:17,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:17:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:17:17,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 21:17:17,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:17:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:17,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:17,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:17,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 21:17:17,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:17:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:17:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:17:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:17,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:17,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:17:17,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:17:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:17,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:17,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:17,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:17:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 21:17:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:17,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:17,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 21:17:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:17,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:17,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:17,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:17,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:17,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:17,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:17,468 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 21:17:17,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116526295] [2020-09-24 21:17:17,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:17,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:17:17,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597493358] [2020-09-24 21:17:17,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:17:17,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:17,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:17:17,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:17:17,472 INFO L87 Difference]: Start difference. First operand 569 states and 643 transitions. Second operand 10 states. [2020-09-24 21:17:18,763 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:19,090 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:19,448 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:19,707 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:20,028 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:21,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:21,612 INFO L93 Difference]: Finished difference Result 1400 states and 1790 transitions. [2020-09-24 21:17:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:17:21,615 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-24 21:17:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:21,620 INFO L225 Difference]: With dead ends: 1400 [2020-09-24 21:17:21,620 INFO L226 Difference]: Without dead ends: 941 [2020-09-24 21:17:21,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:17:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-09-24 21:17:21,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 581. [2020-09-24 21:17:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2020-09-24 21:17:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 655 transitions. [2020-09-24 21:17:21,734 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 655 transitions. Word has length 199 [2020-09-24 21:17:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:17:21,734 INFO L479 AbstractCegarLoop]: Abstraction has 581 states and 655 transitions. [2020-09-24 21:17:21,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:17:21,735 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 655 transitions. [2020-09-24 21:17:21,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 21:17:21,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:21,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:17:21,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:17:21,741 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:21,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:21,742 INFO L82 PathProgramCache]: Analyzing trace with hash 616779547, now seen corresponding path program 1 times [2020-09-24 21:17:21,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:21,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080496300] [2020-09-24 21:17:21,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:21,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 21:17:23,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1391 [2020-09-24 21:17:23,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:17:23,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:17:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 21:17:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,480 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:17:23,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:17:23,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 21:17:23,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:17:23,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:17:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:23,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:23,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:23,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:17:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:23,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:23,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:23,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:17:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:23,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:17:23,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:23,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:17:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:23,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:23,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:17:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:17:23,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:23,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:17:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:17:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:23,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:23,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:17:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:17:23,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:17:23,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:17:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:17:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:17:23,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:17:23,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:17:23,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:17:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:17:23,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:17:23,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:17:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:17:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:17:23,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:17:23,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:17:23,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:17:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:23,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:23,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:23,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 21:17:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:23,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:23,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:23,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:23,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:23,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:23,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 21:17:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:23,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:23,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:23,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:23,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:23,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:23,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:23,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:24,051 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 21:17:24,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080496300] [2020-09-24 21:17:24,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:24,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:17:24,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079589305] [2020-09-24 21:17:24,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:17:24,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:17:24,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:17:24,055 INFO L87 Difference]: Start difference. First operand 581 states and 655 transitions. Second operand 9 states.