/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:23:24,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:23:24,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:23:24,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:23:24,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:23:24,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:23:24,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:23:24,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:23:24,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:23:24,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:23:24,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:23:24,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:23:24,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:23:24,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:23:24,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:23:24,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:23:24,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:23:24,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:23:24,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:23:24,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:23:24,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:23:24,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:23:24,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:23:24,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:23:24,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:23:24,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:23:24,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:23:24,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:23:24,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:23:24,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:23:24,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:23:24,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:23:24,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:23:24,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:23:24,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:23:24,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:23:24,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:23:24,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:23:24,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:23:24,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:23:24,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:23:24,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:23:24,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:23:24,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:23:24,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:23:24,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:23:24,746 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:23:24,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:23:24,747 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:23:24,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:23:24,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:23:24,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:23:24,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:23:24,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:23:24,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:23:24,749 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:23:24,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:23:24,750 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:23:24,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:23:24,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:23:24,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:23:24,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:23:24,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:23:24,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:23:24,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:23:24,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:23:24,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:23:24,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:23:24,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:23:24,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:23:24,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:23:24,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:23:25,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:23:25,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:23:25,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:23:25,271 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:23:25,272 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:23:25,273 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 22:23:25,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec902246c/acc7681531a948de93f799de5e783448/FLAG4e8e3226a [2020-09-24 22:23:26,036 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:23:26,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 22:23:26,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec902246c/acc7681531a948de93f799de5e783448/FLAG4e8e3226a [2020-09-24 22:23:26,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec902246c/acc7681531a948de93f799de5e783448 [2020-09-24 22:23:26,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:23:26,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:23:26,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:26,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:23:26,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:23:26,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:26, skipping insertion in model container [2020-09-24 22:23:26,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:23:26" (1/1) ... [2020-09-24 22:23:26,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:23:26,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:23:26,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:26,778 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:23:26,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:23:27,011 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:23:27,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27 WrapperNode [2020-09-24 22:23:27,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:23:27,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:23:27,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:23:27,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:23:27,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... [2020-09-24 22:23:27,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:23:27,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:23:27,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:23:27,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:23:27,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:23:27,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:23:27,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:23:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:23:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:23:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:23:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:23:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:23:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:23:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:23:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:23:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:23:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:23:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:23:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:23:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:23:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:23:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:23:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:23:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:23:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:23:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:23:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:23:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:23:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:23:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:23:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:23:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:23:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:23:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:23:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:23:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:23:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:23:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:23:27,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:23:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:23:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:23:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:23:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:23:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:23:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:23:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:23:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:23:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:23:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:23:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:23:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:23:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:23:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:23:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:23:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:23:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:23:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:23:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:23:27,221 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:23:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:23:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:23:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:23:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:23:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:23:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:23:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:23:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:23:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:23:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:23:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:23:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:23:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:23:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:23:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:23:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:23:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:23:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:23:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:23:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:23:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:23:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:23:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:23:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:23:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:23:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:23:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:23:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:23:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:23:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:23:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:23:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:23:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:23:28,358 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:23:28,358 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:23:28,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:28 BoogieIcfgContainer [2020-09-24 22:23:28,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:23:28,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:23:28,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:23:28,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:23:28,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:23:26" (1/3) ... [2020-09-24 22:23:28,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6069ee96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:28, skipping insertion in model container [2020-09-24 22:23:28,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:23:27" (2/3) ... [2020-09-24 22:23:28,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6069ee96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:23:28, skipping insertion in model container [2020-09-24 22:23:28,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:23:28" (3/3) ... [2020-09-24 22:23:28,376 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-24 22:23:28,387 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:23:28,398 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:23:28,417 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:23:28,445 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:23:28,445 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:23:28,445 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:23:28,445 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:23:28,445 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:23:28,445 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:23:28,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:23:28,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:23:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-24 22:23:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:23:28,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:28,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:28,492 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:28,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-24 22:23:28,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:28,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012838049] [2020-09-24 22:23:28,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:29,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:29,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:33,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:33,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:33,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:23:33,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:23:33,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 22:23:33,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:23:33,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:23:33,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:23:34,341 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:34,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:34,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-24 22:23:34,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:34,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:34,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:34,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:34,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:34,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:23:34,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:34,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:23:34,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:34,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:23:34,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:23:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:34,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:23:34,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:23:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:34,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:23:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:34,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:34,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:34,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:34,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:34,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:23:34,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:23:34,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012838049] [2020-09-24 22:23:34,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:23:34,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:23:34,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106007072] [2020-09-24 22:23:34,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:23:34,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:34,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:23:34,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:23:34,837 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 8 states. [2020-09-24 22:23:35,431 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:23:36,641 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:36,985 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:23:37,341 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:37,691 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:23:38,034 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:38,703 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:23:39,020 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:39,426 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:40,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:23:40,478 INFO L93 Difference]: Finished difference Result 559 states and 699 transitions. [2020-09-24 22:23:40,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:23:40,480 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:23:40,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:23:40,503 INFO L225 Difference]: With dead ends: 559 [2020-09-24 22:23:40,503 INFO L226 Difference]: Without dead ends: 379 [2020-09-24 22:23:40,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:23:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-09-24 22:23:40,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 334. [2020-09-24 22:23:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-24 22:23:40,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 382 transitions. [2020-09-24 22:23:40,648 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 382 transitions. Word has length 142 [2020-09-24 22:23:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:23:40,652 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 382 transitions. [2020-09-24 22:23:40,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:23:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 382 transitions. [2020-09-24 22:23:40,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 22:23:40,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:40,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:23:40,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:23:40,662 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:40,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:40,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1702989338, now seen corresponding path program 1 times [2020-09-24 22:23:40,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:40,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621477301] [2020-09-24 22:23:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:40,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:40,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:41,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:41,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:45,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:45,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-24 22:23:45,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:23:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 22:23:45,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 22:23:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:23:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:46,065 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:46,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:46,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 22:23:46,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:46,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:23:46,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:46,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:46,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:46,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:23:46,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:46,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:46,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 22:23:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:23:46,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:46,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:23:46,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:23:46,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:46,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:46,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:23:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:23:46,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 22:23:46,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:23:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:23:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:23:46,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:46,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:23:46,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 22:23:46,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:23:46,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:46,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:23:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:23:46,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:23:46,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:46,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:23:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:46,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:46,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:23:46,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:46,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:23:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:46,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:46,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 22:23:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:46,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:46,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:46,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:46,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:46,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:46,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:46,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:46,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:46,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:46,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:23:46,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621477301] [2020-09-24 22:23:46,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:23:46,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:23:46,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804954647] [2020-09-24 22:23:46,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:23:46,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:46,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:23:46,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:23:46,667 INFO L87 Difference]: Start difference. First operand 334 states and 382 transitions. Second operand 10 states. [2020-09-24 22:23:48,187 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:48,493 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:23:48,793 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:23:49,157 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:49,520 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:23:49,813 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:23:50,620 INFO L93 Difference]: Finished difference Result 671 states and 837 transitions. [2020-09-24 22:23:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:23:50,621 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-09-24 22:23:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:23:50,628 INFO L225 Difference]: With dead ends: 671 [2020-09-24 22:23:50,629 INFO L226 Difference]: Without dead ends: 447 [2020-09-24 22:23:50,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:23:50,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-24 22:23:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 345. [2020-09-24 22:23:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-24 22:23:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2020-09-24 22:23:50,694 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 200 [2020-09-24 22:23:50,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:23:50,695 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2020-09-24 22:23:50,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:23:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2020-09-24 22:23:50,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 22:23:50,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:23:50,699 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] [2020-09-24 22:23:50,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:23:50,699 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:23:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:23:50,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1828234151, now seen corresponding path program 1 times [2020-09-24 22:23:50,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:23:50,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945684037] [2020-09-24 22:23:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:23:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:50,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:51,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:55,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 22:23:55,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:23:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4771 [2020-09-24 22:23:55,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 22:23:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:55,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:23:55,781 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:23:55,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:23:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:55,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:55,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:55,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:23:55,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:55,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 22:23:55,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:55,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:55,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:55,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:55,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:23:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:55,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:55,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:55,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:55,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:55,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:55,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:55,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:55,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:55,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:55,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:23:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:55,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:55,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:55,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:55,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:55,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:55,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:55,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:55,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:55,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:55,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:55,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:23:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:55,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:55,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:55,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:55,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:55,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:55,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:23:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:55,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:55,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:55,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:23:55,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:55,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:55,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:55,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:55,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:55,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:55,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:23:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:55,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:55,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:56,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:56,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:56,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:56,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:56,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:56,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:56,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:23:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:56,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:56,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:56,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:23:56,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 22:23:56,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:23:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:56,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:23:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:56,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:56,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:56,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:23:56,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:56,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 22:23:56,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:23:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:23:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:23:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:56,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:23:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:56,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:56,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:56,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:23:56,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:56,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:23:56,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:56,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:23:56,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:23:56,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:23:56,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:56,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:23:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:56,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:56,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:56,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:23:56,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:23:56,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:23:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:56,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:56,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 22:23:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:56,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:56,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:56,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:56,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:56,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:56,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:56,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:23:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:23:56,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:23:56,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:23:56,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:23:56,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:23:56,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:23:56,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:23:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:23:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:23:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:23:56,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:23:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:23:56,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945684037] [2020-09-24 22:23:56,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:23:56,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:23:56,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402706486] [2020-09-24 22:23:56,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:23:56,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:23:56,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:23:56,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:23:56,359 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 9 states. [2020-09-24 22:23:57,847 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:23:58,096 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:23:58,449 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:23:58,839 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:23:59,152 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:00,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:00,314 INFO L93 Difference]: Finished difference Result 736 states and 957 transitions. [2020-09-24 22:24:00,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:24:00,316 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-09-24 22:24:00,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:00,324 INFO L225 Difference]: With dead ends: 736 [2020-09-24 22:24:00,324 INFO L226 Difference]: Without dead ends: 501 [2020-09-24 22:24:00,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:24:00,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-09-24 22:24:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 351. [2020-09-24 22:24:00,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-09-24 22:24:00,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 399 transitions. [2020-09-24 22:24:00,419 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 399 transitions. Word has length 189 [2020-09-24 22:24:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:00,420 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 399 transitions. [2020-09-24 22:24:00,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:24:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 399 transitions. [2020-09-24 22:24:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 22:24:00,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:00,423 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] [2020-09-24 22:24:00,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:24:00,424 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:00,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2036582922, now seen corresponding path program 1 times [2020-09-24 22:24:00,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:00,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835684298] [2020-09-24 22:24:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:00,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:01,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:04,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:04,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 22:24:04,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:04,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4054 [2020-09-24 22:24:04,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:24:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 22:24:04,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 22:24:04,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:04,863 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:04,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:04,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:05,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 22:24:05,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 22:24:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:05,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:05,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:05,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:05,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:05,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:05,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:05,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:24:05,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:05,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:05,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:05,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:24:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:05,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:05,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:24:05,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:24:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:05,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:24:05,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:05,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 22:24:05,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:05,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:24:05,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:05,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:05,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:05,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:05,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:05,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:05,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 22:24:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:05,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:05,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:05,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 22:24:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:05,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:05,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:05,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:05,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:05,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:05,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:05,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835684298] [2020-09-24 22:24:05,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:05,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:24:05,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614557506] [2020-09-24 22:24:05,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:24:05,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:05,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:24:05,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:24:05,369 INFO L87 Difference]: Start difference. First operand 351 states and 399 transitions. Second operand 10 states. [2020-09-24 22:24:05,905 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:06,710 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:07,040 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:07,388 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:07,760 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:08,076 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:08,693 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:08,994 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:09,477 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:11,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:11,643 INFO L93 Difference]: Finished difference Result 1086 states and 1443 transitions. [2020-09-24 22:24:11,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 22:24:11,644 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 189 [2020-09-24 22:24:11,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:11,651 INFO L225 Difference]: With dead ends: 1086 [2020-09-24 22:24:11,651 INFO L226 Difference]: Without dead ends: 797 [2020-09-24 22:24:11,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 22:24:11,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-09-24 22:24:11,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 545. [2020-09-24 22:24:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-09-24 22:24:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 625 transitions. [2020-09-24 22:24:11,725 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 625 transitions. Word has length 189 [2020-09-24 22:24:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:11,725 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 625 transitions. [2020-09-24 22:24:11,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:24:11,726 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 625 transitions. [2020-09-24 22:24:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 22:24:11,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:11,729 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] [2020-09-24 22:24:11,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:24:11,730 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:11,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:11,730 INFO L82 PathProgramCache]: Analyzing trace with hash -580417043, now seen corresponding path program 1 times [2020-09-24 22:24:11,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:11,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422255781] [2020-09-24 22:24:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:11,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:12,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:12,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 22:24:12,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:12,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1095 [2020-09-24 22:24:12,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:12,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:24:12,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 22:24:12,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 22:24:12,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,194 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:13,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:13,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-24 22:24:13,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 22:24:13,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:13,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:13,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:13,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:13,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:13,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:13,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:13,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:13,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:13,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:13,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:24:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:24:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:24:13,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:13,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:24:13,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 22:24:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:13,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:13,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:24:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 22:24:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:13,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:24:13,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 22:24:13,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 22:24:13,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:13,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:24:13,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:13,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:13,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:24:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:13,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:13,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:24:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 22:24:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:13,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:13,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:13,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 22:24:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:13,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:13,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:13,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:13,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:13,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:13,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422255781] [2020-09-24 22:24:13,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:13,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:24:13,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606269753] [2020-09-24 22:24:13,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:24:13,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:13,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:24:13,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:24:13,639 INFO L87 Difference]: Start difference. First operand 545 states and 625 transitions. Second operand 9 states. [2020-09-24 22:24:14,223 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:14,871 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186