/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 --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 interpolation-heuristic=FIRST --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_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:05:15,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:05:15,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:05:15,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:05:15,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:05:15,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:05:15,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:05:15,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:05:15,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:05:15,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:05:15,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:05:15,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:05:15,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:05:15,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:05:15,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:05:15,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:05:15,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:05:15,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:05:15,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:05:15,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:05:15,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:05:15,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:05:15,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:05:15,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:05:15,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:05:15,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:05:15,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:05:15,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:05:15,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:05:15,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:05:15,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:05:15,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:05:15,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:05:15,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:05:15,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:05:15,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:05:15,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:05:15,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:05:15,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:05:15,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:05:15,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:05:15,229 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 [2020-09-21 11:05:15,252 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:05:15,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:05:15,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:05:15,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:05:15,254 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:05:15,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:05:15,255 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:05:15,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:05:15,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:05:15,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:05:15,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:05:15,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:05:15,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:05:15,256 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:05:15,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:05:15,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:05:15,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:05:15,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:05:15,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:05:15,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:05:15,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:05:15,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:05:15,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:05:15,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:05:15,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:05:15,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:05:15,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:05:15,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:05:15,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:05:15,259 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:05:15,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:05:15,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:05:15,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:05:15,736 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:05:15,738 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:05:15,739 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2020-09-21 11:05:15,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e247b9e17/ac17f830f3cd43b1b409ad86170334e7/FLAG7a02fc057 [2020-09-21 11:05:16,493 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:05:16,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2020-09-21 11:05:16,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e247b9e17/ac17f830f3cd43b1b409ad86170334e7/FLAG7a02fc057 [2020-09-21 11:05:16,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e247b9e17/ac17f830f3cd43b1b409ad86170334e7 [2020-09-21 11:05:16,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:05:16,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:05:16,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:05:16,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:05:16,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:05:16,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:05:16" (1/1) ... [2020-09-21 11:05:16,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44459a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:16, skipping insertion in model container [2020-09-21 11:05:16,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:05:16" (1/1) ... [2020-09-21 11:05:16,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:05:16,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:05:17,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:05:17,298 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:05:17,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:05:17,452 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:05:17,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17 WrapperNode [2020-09-21 11:05:17,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:05:17,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:05:17,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:05:17,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:05:17,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (1/1) ... [2020-09-21 11:05:17,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (1/1) ... [2020-09-21 11:05:17,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (1/1) ... [2020-09-21 11:05:17,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (1/1) ... [2020-09-21 11:05:17,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (1/1) ... [2020-09-21 11:05:17,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (1/1) ... [2020-09-21 11:05:17,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (1/1) ... [2020-09-21 11:05:17,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:05:17,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:05:17,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:05:17,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:05:17,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (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 [2020-09-21 11:05:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:05:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:05:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:05:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:05:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:05:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:05:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:05:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:05:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:05:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:05:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:05:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:05:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:05:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 11:05:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:05:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:05:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:05:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:05:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:05:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:05:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:05:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:05:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:05:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:05:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:05:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:05:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:05:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:05:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:05:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:05:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:05:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:05:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:05:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:05:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:05:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:05:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:05:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:05:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:05:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:05:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:05:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:05:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:05:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:05:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:05:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:05:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:05:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:05:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:05:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:05:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:05:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:05:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:05:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:05:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:05:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:05:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:05:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:05:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:05:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:05:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:05:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:05:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:05:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:05:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:05:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:05:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:05:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:05:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-21 11:05:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:05:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:05:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:05:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:05:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:05:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 11:05:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:05:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:05:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:05:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:05:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:05:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:05:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:05:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:05:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:05:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:05:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:05:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:05:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:05:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:05:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:05:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:05:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:05:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:05:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:05:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:05:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:05:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:05:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:05:18,809 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:05:18,810 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:05:18,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:05:18 BoogieIcfgContainer [2020-09-21 11:05:18,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:05:18,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:05:18,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:05:18,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:05:18,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:05:16" (1/3) ... [2020-09-21 11:05:18,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b173a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:05:18, skipping insertion in model container [2020-09-21 11:05:18,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:05:17" (2/3) ... [2020-09-21 11:05:18,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b173a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:05:18, skipping insertion in model container [2020-09-21 11:05:18,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:05:18" (3/3) ... [2020-09-21 11:05:18,835 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2020-09-21 11:05:18,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:05:18,857 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:05:18,877 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:05:18,906 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:05:18,906 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:05:18,906 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:05:18,906 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:05:18,907 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:05:18,907 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:05:18,907 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:05:18,907 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:05:18,935 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-09-21 11:05:18,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:05:18,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:18,948 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] [2020-09-21 11:05:18,949 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:18,957 INFO L82 PathProgramCache]: Analyzing trace with hash -645790062, now seen corresponding path program 1 times [2020-09-21 11:05:18,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:18,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375039748] [2020-09-21 11:05:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,295 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,296 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,296 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:05:19,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:05:19,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:05:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:19,777 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:19,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:19,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:19,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:19,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:19,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:05:19,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:19,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:19,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:19,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:19,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:19,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:19,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:19,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:19,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:19,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:19,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:19,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:05:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,938 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:19,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:19,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:19,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:05:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:19,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:19,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:19,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:19,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:19,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:19,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:19,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:19,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:19,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375039748] [2020-09-21 11:05:19,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:19,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:05:19,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498426591] [2020-09-21 11:05:19,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:05:19,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:19,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:05:20,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:05:20,003 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-09-21 11:05:21,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:21,362 INFO L93 Difference]: Finished difference Result 338 states and 441 transitions. [2020-09-21 11:05:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:05:21,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:05:21,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:21,382 INFO L225 Difference]: With dead ends: 338 [2020-09-21 11:05:21,383 INFO L226 Difference]: Without dead ends: 182 [2020-09-21 11:05:21,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:05:21,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-21 11:05:21,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 147. [2020-09-21 11:05:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-09-21 11:05:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 174 transitions. [2020-09-21 11:05:21,498 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 174 transitions. Word has length 46 [2020-09-21 11:05:21,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:21,499 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 174 transitions. [2020-09-21 11:05:21,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:05:21,499 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2020-09-21 11:05:21,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:05:21,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:21,503 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] [2020-09-21 11:05:21,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:05:21,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:21,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:21,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1894049218, now seen corresponding path program 1 times [2020-09-21 11:05:21,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:21,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594488194] [2020-09-21 11:05:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:21,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:21,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:21,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:21,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:21,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:05:21,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:21,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:05:21,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:21,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:21,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:05:21,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:05:21,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:21,900 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:21,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:21,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:21,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:21,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:21,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:21,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:21,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:21,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:21,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:21,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:21,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:21,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:21,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:21,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:21,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:21,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:21,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:21,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:21,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:21,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:21,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:21,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:21,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:21,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:21,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:21,980 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:21,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:21,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:21,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:21,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:21,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:21,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:21,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:21,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:21,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:21,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:21,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:21,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:21,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:21,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:21,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:21,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:21,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:21,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:21,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:21,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:21,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:21,995 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:21,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:21,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:21,996 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:21,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:21,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:21,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:21,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:21,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:21,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:21,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:21,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:05:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:22,001 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:22,002 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:22,002 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:22,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:22,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:22,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:22,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:22,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:22,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:22,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:22,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:22,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:05:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:22,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:22,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:22,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:22,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:22,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:22,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:22,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:22,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:22,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594488194] [2020-09-21 11:05:22,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:22,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:05:22,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635497059] [2020-09-21 11:05:22,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:05:22,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:22,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:05:22,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:05:22,029 INFO L87 Difference]: Start difference. First operand 147 states and 174 transitions. Second operand 4 states. [2020-09-21 11:05:22,496 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:23,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:23,650 INFO L93 Difference]: Finished difference Result 267 states and 328 transitions. [2020-09-21 11:05:23,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:05:23,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:05:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:23,656 INFO L225 Difference]: With dead ends: 267 [2020-09-21 11:05:23,656 INFO L226 Difference]: Without dead ends: 166 [2020-09-21 11:05:23,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:05:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-21 11:05:23,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 138. [2020-09-21 11:05:23,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-21 11:05:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2020-09-21 11:05:23,704 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 47 [2020-09-21 11:05:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:23,705 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2020-09-21 11:05:23,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:05:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2020-09-21 11:05:23,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:05:23,707 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:23,707 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] [2020-09-21 11:05:23,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:05:23,708 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:23,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1275657422, now seen corresponding path program 1 times [2020-09-21 11:05:23,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:23,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156135904] [2020-09-21 11:05:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:05:24,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:05:24,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-21 11:05:24,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:05:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:05:24,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,441 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:24,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:24,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:24,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:05:24,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:24,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:24,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:24,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:24,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:24,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:24,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:24,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:24,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:24,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:24,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:24,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:24,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:24,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:24,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:24,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:24,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:24,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:24,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:24,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:05:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,614 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:24,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:24,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:05:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:24,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:24,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:24,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:24,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:24,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:24,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:24,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:24,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:24,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:24,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156135904] [2020-09-21 11:05:24,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:24,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:05:24,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192313558] [2020-09-21 11:05:24,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:05:24,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:24,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:05:24,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:05:24,632 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 4 states. [2020-09-21 11:05:24,973 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:26,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:26,106 INFO L93 Difference]: Finished difference Result 280 states and 346 transitions. [2020-09-21 11:05:26,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:05:26,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:05:26,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:26,111 INFO L225 Difference]: With dead ends: 280 [2020-09-21 11:05:26,111 INFO L226 Difference]: Without dead ends: 166 [2020-09-21 11:05:26,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:05:26,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-21 11:05:26,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 138. [2020-09-21 11:05:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-21 11:05:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2020-09-21 11:05:26,156 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 52 [2020-09-21 11:05:26,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:26,156 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2020-09-21 11:05:26,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:05:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2020-09-21 11:05:26,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-21 11:05:26,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:26,160 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] [2020-09-21 11:05:26,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:05:26,160 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:26,161 INFO L82 PathProgramCache]: Analyzing trace with hash 120986168, now seen corresponding path program 1 times [2020-09-21 11:05:26,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:26,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447484411] [2020-09-21 11:05:26,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:26,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:26,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:26,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:26,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:26,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-09-21 11:05:26,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-21 11:05:26,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:05:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-21 11:05:26,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:26,902 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:26,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:26,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:26,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:26,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:26,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:26,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:26,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:26,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:05:26,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:27,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:27,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,027 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:27,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:27,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:27,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:27,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:27,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:27,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:05:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 11:05:27,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:27,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:05:27,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:05:27,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:05:27,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:27,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:05:27,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:27,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:05:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:27,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:27,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:05:27,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:27,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:27,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:05:27,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:05:27,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:27,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:27,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:05:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,133 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:27,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 11:05:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:27,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:27,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:27,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:27,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:27,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:27,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:27,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:27,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:27,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:27,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447484411] [2020-09-21 11:05:27,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:27,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:05:27,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481164581] [2020-09-21 11:05:27,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:05:27,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:27,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:05:27,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:05:27,156 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 6 states. [2020-09-21 11:05:27,568 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:28,940 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:29,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:29,865 INFO L93 Difference]: Finished difference Result 383 states and 475 transitions. [2020-09-21 11:05:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:05:29,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-09-21 11:05:29,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:29,873 INFO L225 Difference]: With dead ends: 383 [2020-09-21 11:05:29,873 INFO L226 Difference]: Without dead ends: 269 [2020-09-21 11:05:29,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:05:29,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-21 11:05:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 226. [2020-09-21 11:05:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-21 11:05:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 256 transitions. [2020-09-21 11:05:29,921 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 256 transitions. Word has length 70 [2020-09-21 11:05:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:29,922 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 256 transitions. [2020-09-21 11:05:29,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:05:29,922 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 256 transitions. [2020-09-21 11:05:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 11:05:29,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:29,924 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] [2020-09-21 11:05:29,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:05:29,924 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:29,925 INFO L82 PathProgramCache]: Analyzing trace with hash 89608959, now seen corresponding path program 1 times [2020-09-21 11:05:29,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:29,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199177486] [2020-09-21 11:05:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:29,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:05:29,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -54 [2020-09-21 11:05:29,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 54 [2020-09-21 11:05:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:29,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 11:05:29,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:05:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:05:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,235 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:30,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:30,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:30,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:30,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:30,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,284 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:30,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:30,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:05:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-21 11:05:30,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:30,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:05:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:05:30,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:30,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:05:30,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:30,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,343 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:05:30,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:30,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:05:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:30,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:30,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:30,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:05:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:30,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:30,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:30,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:05:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:30,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:05:30,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:05:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:30,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:30,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 11:05:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:30,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:30,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:30,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:30,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:30,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:30,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:30,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:30,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:30,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199177486] [2020-09-21 11:05:30,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:30,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:05:30,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988714352] [2020-09-21 11:05:30,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:05:30,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:30,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:05:30,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:05:30,434 INFO L87 Difference]: Start difference. First operand 226 states and 256 transitions. Second operand 7 states. [2020-09-21 11:05:31,305 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:31,634 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:31,931 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:33,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:33,121 INFO L93 Difference]: Finished difference Result 472 states and 571 transitions. [2020-09-21 11:05:33,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:05:33,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-09-21 11:05:33,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:33,125 INFO L225 Difference]: With dead ends: 472 [2020-09-21 11:05:33,125 INFO L226 Difference]: Without dead ends: 270 [2020-09-21 11:05:33,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:05:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-21 11:05:33,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 230. [2020-09-21 11:05:33,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-21 11:05:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 260 transitions. [2020-09-21 11:05:33,175 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 260 transitions. Word has length 84 [2020-09-21 11:05:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:33,175 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 260 transitions. [2020-09-21 11:05:33,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:05:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 260 transitions. [2020-09-21 11:05:33,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 11:05:33,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:33,177 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] [2020-09-21 11:05:33,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:05:33,177 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:33,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:33,178 INFO L82 PathProgramCache]: Analyzing trace with hash -611990915, now seen corresponding path program 1 times [2020-09-21 11:05:33,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:33,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985888037] [2020-09-21 11:05:33,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 11:05:33,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-21 11:05:33,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:05:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:33,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-21 11:05:33,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:33,851 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:33,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:33,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:05:33,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:33,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:33,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:33,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:33,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:33,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:33,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:33,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:33,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:33,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:33,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:33,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:33,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:33,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:33,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:33,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:33,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:33,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:05:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-21 11:05:33,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:33,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:33,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:33,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 11:05:33,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:33,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:33,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:33,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:33,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:33,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:33,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:05:33,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:33,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:33,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:33,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:34,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:34,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:34,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:34,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:34,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:34,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:05:34,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:34,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:34,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:34,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:34,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:34,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:34,016 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:34,016 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:34,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:34,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:34,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:34,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:34,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:34,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:34,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:34,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:34,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:34,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:34,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:34,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:34,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:34,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:34,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:34,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:34,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:34,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:34,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:34,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:34,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:34,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:34,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:34,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:34,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:34,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:34,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:34,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:05:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:34,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:34,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:34,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:34,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:34,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:34,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:05:34,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:34,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 11:05:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:34,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:34,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:34,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:34,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:34,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:34,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:34,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:34,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:34,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:34,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:34,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985888037] [2020-09-21 11:05:34,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:34,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:05:34,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101107947] [2020-09-21 11:05:34,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:05:34,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:34,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:05:34,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:05:34,080 INFO L87 Difference]: Start difference. First operand 230 states and 260 transitions. Second operand 8 states. [2020-09-21 11:05:34,549 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:36,023 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:36,316 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:36,609 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:36,895 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:37,254 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:38,850 INFO L93 Difference]: Finished difference Result 688 states and 836 transitions. [2020-09-21 11:05:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:05:38,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-09-21 11:05:38,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:38,856 INFO L225 Difference]: With dead ends: 688 [2020-09-21 11:05:38,856 INFO L226 Difference]: Without dead ends: 482 [2020-09-21 11:05:38,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:05:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-21 11:05:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 415. [2020-09-21 11:05:38,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-09-21 11:05:38,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 470 transitions. [2020-09-21 11:05:38,969 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 470 transitions. Word has length 84 [2020-09-21 11:05:38,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:38,969 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 470 transitions. [2020-09-21 11:05:38,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:05:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 470 transitions. [2020-09-21 11:05:38,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-21 11:05:38,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:38,972 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] [2020-09-21 11:05:38,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:05:38,972 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:38,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:38,973 INFO L82 PathProgramCache]: Analyzing trace with hash 885407033, now seen corresponding path program 1 times [2020-09-21 11:05:38,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:38,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934822878] [2020-09-21 11:05:38,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:39,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:39,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:39,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:39,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-21 11:05:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-21 11:05:39,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:05:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-21 11:05:39,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:39,935 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:39,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:39,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:39,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:39,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:39,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:39,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:05:39,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:39,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:40,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:40,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,028 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:40,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:40,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:40,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:40,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:40,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:05:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:40,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:05:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-21 11:05:40,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:05:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,089 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:05:40,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:05:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:05:40,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:05:40,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:40,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:05:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,116 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:40,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:40,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:40,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,123 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:40,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:40,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:05:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:40,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:40,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:40,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 11:05:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:40,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:40,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:40,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:40,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:40,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:40,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:40,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:40,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:40,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934822878] [2020-09-21 11:05:40,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:40,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:05:40,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374229839] [2020-09-21 11:05:40,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:05:40,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:40,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:05:40,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:05:40,169 INFO L87 Difference]: Start difference. First operand 415 states and 470 transitions. Second operand 9 states. [2020-09-21 11:05:40,639 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:41,954 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:42,235 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:42,544 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:42,860 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:05:43,175 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:44,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:44,617 INFO L93 Difference]: Finished difference Result 524 states and 650 transitions. [2020-09-21 11:05:44,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:05:44,618 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-09-21 11:05:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:44,623 INFO L225 Difference]: With dead ends: 524 [2020-09-21 11:05:44,623 INFO L226 Difference]: Without dead ends: 521 [2020-09-21 11:05:44,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:05:44,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-09-21 11:05:44,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 415. [2020-09-21 11:05:44,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-09-21 11:05:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 469 transitions. [2020-09-21 11:05:44,714 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 469 transitions. Word has length 88 [2020-09-21 11:05:44,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:44,714 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 469 transitions. [2020-09-21 11:05:44,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:05:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 469 transitions. [2020-09-21 11:05:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 11:05:44,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:44,716 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] [2020-09-21 11:05:44,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:05:44,717 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:44,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:44,717 INFO L82 PathProgramCache]: Analyzing trace with hash -856284930, now seen corresponding path program 1 times [2020-09-21 11:05:44,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:44,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095143065] [2020-09-21 11:05:44,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:44,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:44,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:44,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:44,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:44,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:05:44,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:44,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:05:44,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:05:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:05:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,012 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:45,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:45,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:45,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,055 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,055 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:45,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:45,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:45,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:05:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:45,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:05:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,098 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,099 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:05:45,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:45,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:05:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:05:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:05:45,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:45,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:05:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:05:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:05:45,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:05:45,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:05:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:05:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:05:45,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:45,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:05:45,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:05:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:05:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,210 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:45,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:45,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:05:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:45,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:05:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:45,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:45,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:45,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:45,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:45,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:45,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:45,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:45,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:45,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:45,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:45,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:45,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:45,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095143065] [2020-09-21 11:05:45,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:45,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:05:45,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096432558] [2020-09-21 11:05:45,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:05:45,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:45,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:05:45,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:05:45,252 INFO L87 Difference]: Start difference. First operand 415 states and 469 transitions. Second operand 9 states. [2020-09-21 11:05:46,355 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:46,651 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:05:46,970 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:05:47,273 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:05:48,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:48,745 INFO L93 Difference]: Finished difference Result 916 states and 1112 transitions. [2020-09-21 11:05:48,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:05:48,746 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-09-21 11:05:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:48,751 INFO L225 Difference]: With dead ends: 916 [2020-09-21 11:05:48,751 INFO L226 Difference]: Without dead ends: 525 [2020-09-21 11:05:48,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:05:48,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-09-21 11:05:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 425. [2020-09-21 11:05:48,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-21 11:05:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 479 transitions. [2020-09-21 11:05:48,857 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 479 transitions. Word has length 89 [2020-09-21 11:05:48,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:48,858 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 479 transitions. [2020-09-21 11:05:48,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:05:48,858 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 479 transitions. [2020-09-21 11:05:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 11:05:48,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:48,863 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] [2020-09-21 11:05:48,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:05:48,863 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:48,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:48,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1368774939, now seen corresponding path program 1 times [2020-09-21 11:05:48,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:48,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642446421] [2020-09-21 11:05:48,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:05:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-21 11:05:49,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:05:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-21 11:05:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,401 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:05:49,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:05:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,500 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:49,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 11:05:49,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:05:49,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:05:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:49,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:05:49,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:05:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:49,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:49,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:05:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:49,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:49,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:05:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:05:49,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:49,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:05:49,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:05:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:49,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:49,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:49,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:05:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:05:49,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:49,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:05:49,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:05:49,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,621 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,621 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:05:49,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:49,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:05:49,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:05:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:05:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:05:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:05:49,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:49,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:05:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:49,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:05:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:05:49,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:05:49,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:05:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:05:49,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:05:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:49,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:05:49,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:05:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:05:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:05:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:05:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:49,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:49,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:49,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:05:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:05:49,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:05:49,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:05:49,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:05:49,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:05:49,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:05:49,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:05:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:05:49,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:05:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:05:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:05:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:05:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:05:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:05:49,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642446421] [2020-09-21 11:05:49,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:05:49,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:05:49,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627246550] [2020-09-21 11:05:49,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:05:49,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:05:49,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:05:49,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:05:49,735 INFO L87 Difference]: Start difference. First operand 425 states and 479 transitions. Second operand 7 states. [2020-09-21 11:05:50,133 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:50,732 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:05:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:05:53,491 INFO L93 Difference]: Finished difference Result 1286 states and 1638 transitions. [2020-09-21 11:05:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:05:53,492 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-09-21 11:05:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:05:53,498 INFO L225 Difference]: With dead ends: 1286 [2020-09-21 11:05:53,498 INFO L226 Difference]: Without dead ends: 885 [2020-09-21 11:05:53,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:05:53,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-09-21 11:05:53,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 765. [2020-09-21 11:05:53,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-09-21 11:05:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 897 transitions. [2020-09-21 11:05:53,672 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 897 transitions. Word has length 89 [2020-09-21 11:05:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:05:53,675 INFO L479 AbstractCegarLoop]: Abstraction has 765 states and 897 transitions. [2020-09-21 11:05:53,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:05:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 897 transitions. [2020-09-21 11:05:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 11:05:53,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:05:53,679 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] [2020-09-21 11:05:53,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:05:53,680 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:05:53,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:05:53,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1535755999, now seen corresponding path program 1 times [2020-09-21 11:05:53,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:05:53,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639631726] [2020-09-21 11:05:53,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:05:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:05:53,753 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:05:53,753 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:05:53,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:05:53,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:05:53 BoogieIcfgContainer [2020-09-21 11:05:53,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:05:53,810 INFO L168 Benchmark]: Toolchain (without parser) took 37071.43 ms. Allocated memory was 109.1 MB in the beginning and 615.5 MB in the end (delta: 506.5 MB). Free memory was 73.0 MB in the beginning and 377.7 MB in the end (delta: -304.7 MB). Peak memory consumption was 201.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:53,816 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 109.1 MB. Free memory was 91.8 MB in the beginning and 91.7 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB. [2020-09-21 11:05:53,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.70 ms. Allocated memory was 109.1 MB in the beginning and 165.7 MB in the end (delta: 56.6 MB). Free memory was 72.5 MB in the beginning and 137.8 MB in the end (delta: -65.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:53,826 INFO L168 Benchmark]: Boogie Preprocessor took 96.28 ms. Allocated memory is still 165.7 MB. Free memory was 137.8 MB in the beginning and 133.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:53,827 INFO L168 Benchmark]: RCFGBuilder took 1273.63 ms. Allocated memory was 165.7 MB in the beginning and 184.5 MB in the end (delta: 18.9 MB). Free memory was 133.1 MB in the beginning and 118.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:53,829 INFO L168 Benchmark]: TraceAbstraction took 34982.06 ms. Allocated memory was 184.5 MB in the beginning and 615.5 MB in the end (delta: 431.0 MB). Free memory was 117.9 MB in the beginning and 377.7 MB in the end (delta: -259.8 MB). Peak memory consumption was 171.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:05:53,835 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 109.1 MB. Free memory was 91.8 MB in the beginning and 91.7 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.70 ms. Allocated memory was 109.1 MB in the beginning and 165.7 MB in the end (delta: 56.6 MB). Free memory was 72.5 MB in the beginning and 137.8 MB in the end (delta: -65.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.28 ms. Allocated memory is still 165.7 MB. Free memory was 137.8 MB in the beginning and 133.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1273.63 ms. Allocated memory was 165.7 MB in the beginning and 184.5 MB in the end (delta: 18.9 MB). Free memory was 133.1 MB in the beginning and 118.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34982.06 ms. Allocated memory was 184.5 MB in the beginning and 615.5 MB in the end (delta: 431.0 MB). Free memory was 117.9 MB in the beginning and 377.7 MB in the end (delta: -259.8 MB). Peak memory consumption was 171.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 216]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L691] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L889] int waterLevel = 1; [L890] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L487] int retValue_acc ; [L490] retValue_acc = 1 [L491] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L146] int splverifierCounter ; [L147] int tmp ; [L148] int tmp___0 ; [L149] int tmp___1 ; [L150] int tmp___2 ; [L153] splverifierCounter = 0 [L155] COND TRUE 1 [L157] COND TRUE splverifierCounter < 4 [L163] tmp = __VERIFIER_nondet_int() [L165] COND TRUE \read(tmp) [L167] CALL waterRise() [L907] COND TRUE waterLevel < 2 [L908] waterLevel = waterLevel + 1 [L167] RET waterRise() [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND TRUE \read(tmp___0) [L177] CALL changeMethaneLevel() [L919] COND FALSE !(\read(methaneLevelCritical)) [L922] methaneLevelCritical = 1 [L177] RET changeMethaneLevel() [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___2)) [L191] tmp___1 = __VERIFIER_nondet_int() [L193] COND TRUE \read(tmp___1) [L200] CALL timeShift() [L237] COND FALSE !(\read(pumpRunning)) [L244] COND TRUE \read(systemActive) [L246] CALL processEnvironment() [L318] int tmp ; [L321] COND FALSE !(\read(pumpRunning)) [L336] CALL processEnvironment__wrappee__lowWaterSensor() [L292] int tmp ; [L295] COND FALSE !(\read(pumpRunning)) [L310] CALL processEnvironment__wrappee__highWaterSensor() [L266] int tmp ; [L269] COND TRUE ! pumpRunning [L271] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L969] int retValue_acc ; [L972] COND FALSE !(waterLevel < 2) [L976] retValue_acc = 0 [L977] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] tmp___0 = 1 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L271] RET, EXPR isHighWaterLevel() [L271] tmp = isHighWaterLevel() [L273] COND TRUE \read(tmp) [L275] CALL activatePump() [L346] pumpRunning = 1 [L275] RET activatePump() [L310] RET processEnvironment__wrappee__highWaterSensor() [L336] RET processEnvironment__wrappee__lowWaterSensor() [L246] RET processEnvironment() [L252] CALL __utac_acc__Specification1_spec__1() [L497] int tmp ; [L498] int tmp___0 ; [L502] CALL, EXPR isMethaneLevelCritical() [L928] int retValue_acc ; [L931] retValue_acc = methaneLevelCritical [L932] return (retValue_acc); [L502] RET, EXPR isMethaneLevelCritical() [L502] tmp = isMethaneLevelCritical() [L504] COND TRUE \read(tmp) [L506] CALL, EXPR isPumpRunning() [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); [L506] RET, EXPR isPumpRunning() [L506] tmp___0 = isPumpRunning() [L508] COND TRUE \read(tmp___0) [L510] CALL __automaton_fail() [L216] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 249 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 34.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 26.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1221 SDtfs, 1844 SDslu, 901 SDs, 0 SdLazy, 4717 SolverSat, 1197 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 321 GetRequests, 237 SyntacticMatches, 5 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=765occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 567 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 742 NumberOfCodeBlocks, 742 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 200667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...