/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:40:48,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:40:48,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:40:48,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:40:48,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:40:48,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:40:48,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:40:48,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:40:48,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:40:48,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:40:48,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:40:48,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:40:48,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:40:48,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:40:48,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:40:48,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:40:48,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:40:48,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:40:48,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:40:48,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:40:48,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:40:48,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:40:48,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:40:48,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:40:48,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:40:48,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:40:48,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:40:48,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:40:48,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:40:48,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:40:48,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:40:48,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:40:48,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:40:48,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:40:48,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:40:48,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:40:48,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:40:48,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:40:48,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:40:48,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:40:48,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:40:48,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:40:48,787 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:40:48,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:40:48,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:40:48,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:40:48,790 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:40:48,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:40:48,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:40:48,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:40:48,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:40:48,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:40:48,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:40:48,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:40:48,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:40:48,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:40:48,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:40:48,794 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:40:48,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:40:48,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:40:48,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:40:48,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:40:48,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:40:48,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:40:48,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:40:48,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:40:48,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:40:48,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:40:48,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:40:48,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:40:48,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:40:48,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 15:40:49,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:40:49,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:40:49,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:40:49,280 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:40:49,281 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:40:49,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-24 15:40:49,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c2039ccb/fc73985ff9524467822c9474eb1da7ce/FLAG936961032 [2020-09-24 15:40:50,063 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:40:50,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-24 15:40:50,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c2039ccb/fc73985ff9524467822c9474eb1da7ce/FLAG936961032 [2020-09-24 15:40:50,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c2039ccb/fc73985ff9524467822c9474eb1da7ce [2020-09-24 15:40:50,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:40:50,316 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:40:50,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:50,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:40:50,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:40:50,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:50" (1/1) ... [2020-09-24 15:40:50,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:50, skipping insertion in model container [2020-09-24 15:40:50,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:40:50" (1/1) ... [2020-09-24 15:40:50,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:40:50,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:40:50,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:50,910 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:40:51,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:40:51,089 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:40:51,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51 WrapperNode [2020-09-24 15:40:51,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:40:51,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:40:51,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:40:51,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:40:51,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... [2020-09-24 15:40:51,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... [2020-09-24 15:40:51,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... [2020-09-24 15:40:51,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... [2020-09-24 15:40:51,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... [2020-09-24 15:40:51,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... [2020-09-24 15:40:51,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... [2020-09-24 15:40:51,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:40:51,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:40:51,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:40:51,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:40:51,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:40:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:40:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:40:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:40:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:40:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:40:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:40:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:40:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:40:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:40:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:40:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:40:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:40:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:40:51,306 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:40:51,306 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:40:51,306 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:40:51,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:40:51,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:40:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:40:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:40:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:40:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:40:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:40:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:40:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:40:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:40:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:40:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:40:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:40:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:40:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:40:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:40:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:40:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:40:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:40:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:40:51,311 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:40:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:40:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:40:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:40:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:40:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:40:51,312 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:40:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:40:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:40:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:40:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:40:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:40:51,313 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:40:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:40:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:40:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:40:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:40:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:40:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:40:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:40:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:40:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:40:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:40:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:40:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:40:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:40:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:40:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:40:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:40:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:40:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:40:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:40:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:40:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:40:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:40:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:40:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:40:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:40:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:40:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:40:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:40:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:40:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:40:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:40:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:40:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:40:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:40:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:40:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:40:52,481 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:40:52,481 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:40:52,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:52 BoogieIcfgContainer [2020-09-24 15:40:52,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:40:52,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:40:52,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:40:52,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:40:52,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:40:50" (1/3) ... [2020-09-24 15:40:52,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618d211e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:52, skipping insertion in model container [2020-09-24 15:40:52,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:40:51" (2/3) ... [2020-09-24 15:40:52,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618d211e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:40:52, skipping insertion in model container [2020-09-24 15:40:52,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:40:52" (3/3) ... [2020-09-24 15:40:52,505 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-09-24 15:40:52,517 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:40:52,531 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:40:52,554 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:40:52,584 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:40:52,584 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:40:52,584 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:40:52,584 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:40:52,584 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:40:52,584 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:40:52,585 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:40:52,585 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:40:52,612 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-24 15:40:52,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:40:52,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:52,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:52,631 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:52,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:52,639 INFO L82 PathProgramCache]: Analyzing trace with hash 750514354, now seen corresponding path program 1 times [2020-09-24 15:40:52,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:52,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361347872] [2020-09-24 15:40:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:52,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:52,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:52,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:52,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:52,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:40:52,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:52,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:40:52,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:40:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:52,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:53,444 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:53,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:53,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:53,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:53,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:53,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:53,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:53,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:40:53,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:53,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:53,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:53,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:53,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:53,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:53,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:53,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:53,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:53,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:53,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:53,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:53,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:53,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:53,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:53,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:53,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:53,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:53,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:53,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:53,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:53,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:53,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:53,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:53,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:53,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:53,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:53,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:53,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:53,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:53,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:53,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:53,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:53,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:53,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:53,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:53,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:53,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:53,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:53,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:53,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:40:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:53,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:53,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:53,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:53,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:53,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:53,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:53,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:53,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:40:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:53,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:53,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:53,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:53,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:53,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:53,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:53,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:40:53,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:53,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:53,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:53,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:53,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:53,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361347872] [2020-09-24 15:40:53,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:53,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:40:53,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287160898] [2020-09-24 15:40:53,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:40:53,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:53,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:40:53,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:40:53,708 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2020-09-24 15:40:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:55,023 INFO L93 Difference]: Finished difference Result 439 states and 524 transitions. [2020-09-24 15:40:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:40:55,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:40:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:55,062 INFO L225 Difference]: With dead ends: 439 [2020-09-24 15:40:55,062 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 15:40:55,071 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 [2020-09-24 15:40:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 15:40:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-09-24 15:40:55,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-24 15:40:55,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-09-24 15:40:55,209 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 142 [2020-09-24 15:40:55,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:55,210 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-09-24 15:40:55,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:40:55,210 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-09-24 15:40:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:40:55,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:55,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:55,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:40:55,216 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:55,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:55,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1453121021, now seen corresponding path program 1 times [2020-09-24 15:40:55,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:55,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116041831] [2020-09-24 15:40:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,305 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,305 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:40:55,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:40:55,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:40:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:40:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:55,674 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:55,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:55,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:55,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:55,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:55,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:55,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,750 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:55,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,757 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,757 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:55,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:40:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:55,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:55,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:40:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:55,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:55,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:55,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:55,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:55,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:55,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:55,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:55,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:55,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:55,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:55,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116041831] [2020-09-24 15:40:55,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:55,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:40:55,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734386337] [2020-09-24 15:40:55,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:40:55,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:55,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:40:55,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:40:55,833 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-09-24 15:40:56,560 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:40:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:40:57,477 INFO L93 Difference]: Finished difference Result 347 states and 389 transitions. [2020-09-24 15:40:57,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:40:57,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:40:57,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:40:57,482 INFO L225 Difference]: With dead ends: 347 [2020-09-24 15:40:57,483 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 15:40:57,485 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 [2020-09-24 15:40:57,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 15:40:57,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-09-24 15:40:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-24 15:40:57,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-09-24 15:40:57,524 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 143 [2020-09-24 15:40:57,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:40:57,525 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-09-24 15:40:57,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:40:57,525 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-09-24 15:40:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 15:40:57,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:40:57,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:40:57,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:40:57,529 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:40:57,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:40:57,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1038765417, now seen corresponding path program 1 times [2020-09-24 15:40:57,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:40:57,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153439318] [2020-09-24 15:40:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:40:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:57,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:40:57,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:57,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:57,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:57,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:40:57,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:57,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:40:57,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:40:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:40:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:40:57,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,084 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:40:58,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:40:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:40:58,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:40:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:40:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:58,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:58,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:58,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:40:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,208 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,208 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:58,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:58,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:58,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:40:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:40:58,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:40:58,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:40:58,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:40:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:40:58,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:40:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:40:58,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:40:58,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:40:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,232 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,233 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,233 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,233 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 15:40:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:40:58,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:40:58,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:40:58,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:40:58,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:40:58,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:40:58,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:40:58,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:40:58,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:40:58,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:40:58,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:40:58,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:40:58,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:40:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:40:58,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153439318] [2020-09-24 15:40:58,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:40:58,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:40:58,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513857445] [2020-09-24 15:40:58,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:40:58,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:40:58,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:40:58,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:40:58,270 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 4 states. [2020-09-24 15:40:58,761 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:00,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:00,149 INFO L93 Difference]: Finished difference Result 502 states and 571 transitions. [2020-09-24 15:41:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:41:00,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-24 15:41:00,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:00,155 INFO L225 Difference]: With dead ends: 502 [2020-09-24 15:41:00,155 INFO L226 Difference]: Without dead ends: 386 [2020-09-24 15:41:00,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:41:00,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-24 15:41:00,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 330. [2020-09-24 15:41:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-24 15:41:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 361 transitions. [2020-09-24 15:41:00,233 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 361 transitions. Word has length 152 [2020-09-24 15:41:00,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:00,237 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 361 transitions. [2020-09-24 15:41:00,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:41:00,237 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 361 transitions. [2020-09-24 15:41:00,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 15:41:00,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:00,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:00,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:41:00,247 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:00,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:00,248 INFO L82 PathProgramCache]: Analyzing trace with hash -66041728, now seen corresponding path program 1 times [2020-09-24 15:41:00,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:00,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885384918] [2020-09-24 15:41:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 15:41:00,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:41:00,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:41:00,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:41:00,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:41:00,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,719 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:00,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:00,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:00,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:41:00,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:00,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,843 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:00,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:00,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:00,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:00,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:00,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:00,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:00,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:00,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,869 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,870 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:00,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:00,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:00,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:00,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:41:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,892 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:41:00,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:00,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:41:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:41:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:41:00,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:00,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:00,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:00,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:00,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:00,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:00,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:00,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:00,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:00,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:00,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:41:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:01,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:01,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:01,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:01,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 15:41:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:01,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:01,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:01,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:01,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:01,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:01,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:01,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:01,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:01,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885384918] [2020-09-24 15:41:01,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:01,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:41:01,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809923736] [2020-09-24 15:41:01,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:41:01,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:01,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:41:01,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:41:01,078 INFO L87 Difference]: Start difference. First operand 330 states and 361 transitions. Second operand 7 states. [2020-09-24 15:41:01,760 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:03,289 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:03,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:03,863 INFO L93 Difference]: Finished difference Result 838 states and 977 transitions. [2020-09-24 15:41:03,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:41:03,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-09-24 15:41:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:03,870 INFO L225 Difference]: With dead ends: 838 [2020-09-24 15:41:03,870 INFO L226 Difference]: Without dead ends: 618 [2020-09-24 15:41:03,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:41:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-24 15:41:03,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 525. [2020-09-24 15:41:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-09-24 15:41:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 578 transitions. [2020-09-24 15:41:03,957 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 578 transitions. Word has length 160 [2020-09-24 15:41:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:03,957 INFO L479 AbstractCegarLoop]: Abstraction has 525 states and 578 transitions. [2020-09-24 15:41:03,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:41:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 578 transitions. [2020-09-24 15:41:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 15:41:03,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:03,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:03,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:41:03,960 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:03,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:03,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1164437593, now seen corresponding path program 1 times [2020-09-24 15:41:03,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:03,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766018252] [2020-09-24 15:41:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 15:41:04,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:41:04,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:41:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:41:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:41:04,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,423 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:04,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:41:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:04,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:04,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:04,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:04,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:04,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:04,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:04,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:04,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:04,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:04,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 15:41:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:04,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:04,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:04,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:41:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:04,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:04,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:04,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:41:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:04,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:04,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:04,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:04,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:04,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:04,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:04,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:04,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:04,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:04,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766018252] [2020-09-24 15:41:04,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:04,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:41:04,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180177851] [2020-09-24 15:41:04,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:41:04,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:04,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:41:04,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:41:04,646 INFO L87 Difference]: Start difference. First operand 525 states and 578 transitions. Second operand 9 states. [2020-09-24 15:41:05,214 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:06,317 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:06,648 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:07,030 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:07,405 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:07,731 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:41:08,027 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:08,345 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:08,798 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:10,026 INFO L93 Difference]: Finished difference Result 1406 states and 1635 transitions. [2020-09-24 15:41:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:10,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 15:41:10,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:10,039 INFO L225 Difference]: With dead ends: 1406 [2020-09-24 15:41:10,039 INFO L226 Difference]: Without dead ends: 991 [2020-09-24 15:41:10,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:41:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2020-09-24 15:41:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 869. [2020-09-24 15:41:10,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-09-24 15:41:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 964 transitions. [2020-09-24 15:41:10,203 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 964 transitions. Word has length 161 [2020-09-24 15:41:10,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:10,204 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 964 transitions. [2020-09-24 15:41:10,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:41:10,204 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 964 transitions. [2020-09-24 15:41:10,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:41:10,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:10,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:10,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:41:10,208 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:10,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:10,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1435242309, now seen corresponding path program 1 times [2020-09-24 15:41:10,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:10,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270483179] [2020-09-24 15:41:10,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 15:41:10,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:41:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:41:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 15:41:10,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,693 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:10,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:41:10,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,774 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:10,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:10,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:10,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:10,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:10,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:10,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:10,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:10,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:41:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:10,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:41:10,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:10,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:41:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:10,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:10,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:41:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:10,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:10,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:10,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270483179] [2020-09-24 15:41:10,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:10,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:10,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534179120] [2020-09-24 15:41:10,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:10,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:10,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:10,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:10,953 INFO L87 Difference]: Start difference. First operand 869 states and 964 transitions. Second operand 10 states. [2020-09-24 15:41:11,534 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:12,850 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:13,182 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:13,536 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:13,875 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:14,162 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:14,647 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:14,901 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:15,262 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:16,017 INFO L93 Difference]: Finished difference Result 1102 states and 1292 transitions. [2020-09-24 15:41:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:41:16,018 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-24 15:41:16,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:16,024 INFO L225 Difference]: With dead ends: 1102 [2020-09-24 15:41:16,024 INFO L226 Difference]: Without dead ends: 1099 [2020-09-24 15:41:16,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:41:16,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2020-09-24 15:41:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 869. [2020-09-24 15:41:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-09-24 15:41:16,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 962 transitions. [2020-09-24 15:41:16,147 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 962 transitions. Word has length 166 [2020-09-24 15:41:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:16,147 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 962 transitions. [2020-09-24 15:41:16,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:16,148 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 962 transitions. [2020-09-24 15:41:16,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:41:16,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:16,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:16,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:41:16,154 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:16,154 INFO L82 PathProgramCache]: Analyzing trace with hash 350443365, now seen corresponding path program 1 times [2020-09-24 15:41:16,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:16,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103998669] [2020-09-24 15:41:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,222 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,222 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:41:16,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:16,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 15:41:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:16,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,528 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:16,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:16,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:16,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:16,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:16,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:16,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:16,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,596 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:16,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:16,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:16,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,630 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:16,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:16,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:41:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:16,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:16,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:16,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:41:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:16,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:16,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:41:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:16,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:16,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:16,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:41:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:16,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:16,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:16,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:16,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:16,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:16,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:16,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:16,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:16,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103998669] [2020-09-24 15:41:16,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:16,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:16,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612239778] [2020-09-24 15:41:16,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:16,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:16,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:16,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:16,775 INFO L87 Difference]: Start difference. First operand 869 states and 962 transitions. Second operand 10 states. [2020-09-24 15:41:18,115 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:18,391 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:18,731 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:41:19,054 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:19,403 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:19,727 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:20,678 INFO L93 Difference]: Finished difference Result 1941 states and 2276 transitions. [2020-09-24 15:41:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:41:20,679 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 15:41:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:20,686 INFO L225 Difference]: With dead ends: 1941 [2020-09-24 15:41:20,686 INFO L226 Difference]: Without dead ends: 1182 [2020-09-24 15:41:20,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:41:20,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2020-09-24 15:41:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 901. [2020-09-24 15:41:20,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 901 states. [2020-09-24 15:41:20,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 994 transitions. [2020-09-24 15:41:20,780 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 994 transitions. Word has length 190 [2020-09-24 15:41:20,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:20,781 INFO L479 AbstractCegarLoop]: Abstraction has 901 states and 994 transitions. [2020-09-24 15:41:20,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:20,781 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 994 transitions. [2020-09-24 15:41:20,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:41:20,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:20,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:20,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:41:20,786 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:20,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:20,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1071797499, now seen corresponding path program 1 times [2020-09-24 15:41:20,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:20,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42475986] [2020-09-24 15:41:20,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:20,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:41:20,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -67 [2020-09-24 15:41:20,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 67 [2020-09-24 15:41:20,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:20,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:41:20,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:20,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:20,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:20,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 15:41:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,145 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:21,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:21,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:21,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:21,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:21,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:21,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:21,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:21,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:21,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:21,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:21,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:21,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:21,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:21,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:21,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:21,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:41:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:21,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,252 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:21,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:21,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:41:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:21,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:21,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,282 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:21,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:21,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:41:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:21,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:21,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:21,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:21,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:41:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:21,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:41:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:21,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:21,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:21,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:21,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:21,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:21,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:21,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:21,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:21,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:21,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:21,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:21,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:21,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42475986] [2020-09-24 15:41:21,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:21,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:41:21,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699871012] [2020-09-24 15:41:21,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:41:21,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:21,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:41:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:41:21,362 INFO L87 Difference]: Start difference. First operand 901 states and 994 transitions. Second operand 9 states. [2020-09-24 15:41:22,556 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:22,860 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:23,210 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:23,565 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:23,869 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:24,971 INFO L93 Difference]: Finished difference Result 2017 states and 2379 transitions. [2020-09-24 15:41:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:41:24,973 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-24 15:41:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:24,980 INFO L225 Difference]: With dead ends: 2017 [2020-09-24 15:41:24,980 INFO L226 Difference]: Without dead ends: 1226 [2020-09-24 15:41:24,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:41:24,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2020-09-24 15:41:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 925. [2020-09-24 15:41:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-09-24 15:41:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1018 transitions. [2020-09-24 15:41:25,097 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1018 transitions. Word has length 190 [2020-09-24 15:41:25,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:25,098 INFO L479 AbstractCegarLoop]: Abstraction has 925 states and 1018 transitions. [2020-09-24 15:41:25,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:41:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1018 transitions. [2020-09-24 15:41:25,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:41:25,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:25,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:25,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:41:25,103 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:25,105 INFO L82 PathProgramCache]: Analyzing trace with hash -863448728, now seen corresponding path program 1 times [2020-09-24 15:41:25,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:25,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402094361] [2020-09-24 15:41:25,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:41:25,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:41:25,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:41:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:41:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 15:41:25,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,564 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:25,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:41:25,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:25,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:25,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:25,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:41:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:25,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 15:41:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 15:41:25,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:25,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:25,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:25,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,820 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,820 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,820 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:25,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:41:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 15:41:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:25,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:41:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:25,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:41:25,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402094361] [2020-09-24 15:41:25,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:25,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:41:25,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702978496] [2020-09-24 15:41:25,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:41:25,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:25,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:41:25,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:41:25,874 INFO L87 Difference]: Start difference. First operand 925 states and 1018 transitions. Second operand 7 states. [2020-09-24 15:41:26,430 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:27,023 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:29,526 INFO L93 Difference]: Finished difference Result 2926 states and 3526 transitions. [2020-09-24 15:41:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:29,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-24 15:41:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:29,538 INFO L225 Difference]: With dead ends: 2926 [2020-09-24 15:41:29,538 INFO L226 Difference]: Without dead ends: 2111 [2020-09-24 15:41:29,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:41:29,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-09-24 15:41:29,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 1759. [2020-09-24 15:41:29,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1759 states. [2020-09-24 15:41:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 1994 transitions. [2020-09-24 15:41:29,779 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 1994 transitions. Word has length 190 [2020-09-24 15:41:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:29,780 INFO L479 AbstractCegarLoop]: Abstraction has 1759 states and 1994 transitions. [2020-09-24 15:41:29,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:41:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 1994 transitions. [2020-09-24 15:41:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 15:41:29,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:29,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:29,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:41:29,786 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:29,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:29,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1653898682, now seen corresponding path program 1 times [2020-09-24 15:41:29,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:29,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241200773] [2020-09-24 15:41:29,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:41:29,893 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:41:29,893 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:41:29,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:41:29,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:41:29 BoogieIcfgContainer [2020-09-24 15:41:29,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:41:29,944 INFO L168 Benchmark]: Toolchain (without parser) took 39629.89 ms. Allocated memory was 146.8 MB in the beginning and 748.2 MB in the end (delta: 601.4 MB). Free memory was 102.5 MB in the beginning and 312.2 MB in the end (delta: -209.7 MB). Peak memory consumption was 391.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:29,948 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:41:29,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.98 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 175.1 MB in the end (delta: -73.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:29,954 INFO L168 Benchmark]: Boogie Preprocessor took 100.31 ms. Allocated memory is still 205.0 MB. Free memory was 175.1 MB in the beginning and 171.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:29,954 INFO L168 Benchmark]: RCFGBuilder took 1302.40 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 171.0 MB in the beginning and 180.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:29,956 INFO L168 Benchmark]: TraceAbstraction took 37444.25 ms. Allocated memory was 237.0 MB in the beginning and 748.2 MB in the end (delta: 511.2 MB). Free memory was 179.0 MB in the beginning and 312.2 MB in the end (delta: -133.3 MB). Peak memory consumption was 377.9 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:29,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 771.98 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 175.1 MB in the end (delta: -73.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.31 ms. Allocated memory is still 205.0 MB. Free memory was 175.1 MB in the beginning and 171.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1302.40 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 171.0 MB in the beginning and 180.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37444.25 ms. Allocated memory was 237.0 MB in the beginning and 748.2 MB in the end (delta: 511.2 MB). Free memory was 179.0 MB in the beginning and 312.2 MB in the end (delta: -133.3 MB). Peak memory consumption was 377.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 145]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L250] int pumpRunning = 0; [L251] int systemActive = 1; [L455] int cleanupTimeShifts = 4; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L528] int retValue_acc ; [L529] int tmp ; [L533] FCALL select_helpers() [L534] FCALL select_features() [L535] CALL, EXPR valid_product() [L446] int retValue_acc ; [L449] retValue_acc = 1 [L450] return (retValue_acc); [L535] RET, EXPR valid_product() [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) [L539] FCALL setup() [L540] CALL runTest() [L522] CALL test() [L181] int splverifierCounter ; [L182] int tmp ; [L183] int tmp___0 ; [L184] int tmp___1 ; [L185] int tmp___2 ; [L188] splverifierCounter = 0 [L190] COND TRUE 1 [L192] COND TRUE splverifierCounter < 4 [L198] tmp = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp) [L202] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L202] RET waterRise() [L208] tmp___0 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___0) [L212] CALL changeMethaneLevel() [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L212] RET changeMethaneLevel() [L218] tmp___2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___2) [L235] CALL timeShift() [L257] COND FALSE !(\read(pumpRunning)) [L264] COND TRUE \read(systemActive) [L266] CALL processEnvironment() [L286] int tmp ; [L289] COND TRUE ! pumpRunning [L291] CALL, EXPR isHighWaterLevel() [L383] int retValue_acc ; [L384] int tmp ; [L385] int tmp___0 ; [L389] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L389] RET, EXPR isHighWaterSensorDry() [L389] tmp = isHighWaterSensorDry() [L391] COND FALSE !(\read(tmp)) [L394] tmp___0 = 1 [L396] retValue_acc = tmp___0 [L397] return (retValue_acc); [L291] RET, EXPR isHighWaterLevel() [L291] tmp = isHighWaterLevel() [L293] COND TRUE \read(tmp) [L295] CALL activatePump() [L314] pumpRunning = 1 [L295] RET activatePump() [L266] RET processEnvironment() [L272] CALL __utac_acc__Specification1_spec__1() [L152] int tmp ; [L153] int tmp___0 ; [L157] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L157] RET, EXPR isMethaneLevelCritical() [L157] tmp = isMethaneLevelCritical() [L159] COND TRUE \read(tmp) [L161] CALL, EXPR isPumpRunning() [L338] int retValue_acc ; [L341] retValue_acc = pumpRunning [L342] return (retValue_acc); [L161] RET, EXPR isPumpRunning() [L161] tmp___0 = isPumpRunning() [L163] COND TRUE \read(tmp___0) [L165] CALL __automaton_fail() [L145] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 612 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2029 SDtfs, 3434 SDslu, 2993 SDs, 0 SdLazy, 6015 SolverSat, 1006 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 199 SyntacticMatches, 4 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1759occurred 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: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1510 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1689 NumberOfCodeBlocks, 1689 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1485 ConstructedInterpolants, 0 QuantifiedInterpolants, 667038 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...