/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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:41:05,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:41:05,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:41:05,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:41:05,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:41:05,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:41:05,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:41:05,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:41:05,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:41:05,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:41:05,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:41:05,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:41:05,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:41:05,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:41:05,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:41:05,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:41:05,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:41:05,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:41:05,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:41:05,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:41:05,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:41:05,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:41:05,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:41:05,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:41:05,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:41:05,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:41:05,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:41:05,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:41:05,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:41:05,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:41:05,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:41:05,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:41:05,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:41:05,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:41:05,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:41:05,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:41:05,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:41:05,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:41:05,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:41:05,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:41:05,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:41:05,660 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 15:41:05,685 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:41:05,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:41:05,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:41:05,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:41:05,687 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:41:05,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:41:05,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:41:05,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:41:05,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:41:05,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:41:05,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:41:05,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:41:05,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:41:05,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:41:05,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:41:05,689 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:41:05,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:41:05,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:41:05,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:41:05,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:41:05,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:41:05,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:41:05,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:41:05,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:41:05,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:41:05,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:41:05,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:41:05,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:41:05,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:41:05,692 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 15:41:06,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:41:06,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:41:06,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:41:06,182 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:41:06,182 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:41:06,184 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 15:41:06,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d232709e/8641b3d3c27342f4abb65b38898e2546/FLAGbb984b860 [2020-09-24 15:41:06,869 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:41:06,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 15:41:06,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d232709e/8641b3d3c27342f4abb65b38898e2546/FLAGbb984b860 [2020-09-24 15:41:07,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d232709e/8641b3d3c27342f4abb65b38898e2546 [2020-09-24 15:41:07,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:41:07,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:41:07,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:41:07,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:41:07,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:41:07,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07, skipping insertion in model container [2020-09-24 15:41:07,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:41:07,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:41:07,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:41:07,610 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:41:07,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:41:07,882 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:41:07,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07 WrapperNode [2020-09-24 15:41:07,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:41:07,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:41:07,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:41:07,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:41:07,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (1/1) ... [2020-09-24 15:41:07,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:41:07,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:41:07,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:41:07,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:41:07,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (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 15:41:08,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:41:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:41:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:41:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:41:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:41:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:41:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:41:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:41:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:41:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:41:08,110 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:41:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:41:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:41:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:41:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:41:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:41:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:41:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:41:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:41:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:41:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:41:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:41:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:41:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:41:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:41:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:41:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:41:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:41:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:41:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:41:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:41:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:41:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:41:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:41:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:41:08,116 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:41:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:41:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:41:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:41:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:41:08,121 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:41:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:41:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:41:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:41:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:41:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:41:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:41:09,307 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:41:09,307 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:41:09,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:41:09 BoogieIcfgContainer [2020-09-24 15:41:09,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:41:09,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:41:09,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:41:09,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:41:09,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:41:07" (1/3) ... [2020-09-24 15:41:09,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:41:09, skipping insertion in model container [2020-09-24 15:41:09,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:41:07" (2/3) ... [2020-09-24 15:41:09,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:41:09, skipping insertion in model container [2020-09-24 15:41:09,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:41:09" (3/3) ... [2020-09-24 15:41:09,326 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-24 15:41:09,339 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:41:09,351 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:41:09,373 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:41:09,403 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:41:09,403 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:41:09,403 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:41:09,403 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:41:09,403 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:41:09,403 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:41:09,404 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:41:09,404 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:41:09,434 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-24 15:41:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:41:09,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:09,456 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 15:41:09,457 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:09,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:09,465 INFO L82 PathProgramCache]: Analyzing trace with hash -483838742, now seen corresponding path program 1 times [2020-09-24 15:41:09,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:09,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81926323] [2020-09-24 15:41:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:09,856 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:09,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:09,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:09,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:09,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:41:09,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:09,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:41:09,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:41:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,337 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:10,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:10,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:10,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 15:41:10,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:10,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:10,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:10,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:10,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:10,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:10,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:10,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:10,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:10,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:10,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:10,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:10,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:10,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:41:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:10,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:10,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:10,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:10,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:10,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:10,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:10,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:10,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:10,594 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 15:41:10,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81926323] [2020-09-24 15:41:10,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:10,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:41:10,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108319900] [2020-09-24 15:41:10,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:41:10,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:10,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:41:10,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:41:10,627 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 3 states. [2020-09-24 15:41:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:12,021 INFO L93 Difference]: Finished difference Result 490 states and 587 transitions. [2020-09-24 15:41:12,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:41:12,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:41:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:12,044 INFO L225 Difference]: With dead ends: 490 [2020-09-24 15:41:12,044 INFO L226 Difference]: Without dead ends: 304 [2020-09-24 15:41:12,050 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 15:41:12,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-24 15:41:12,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 260. [2020-09-24 15:41:12,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-24 15:41:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 284 transitions. [2020-09-24 15:41:12,182 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 284 transitions. Word has length 142 [2020-09-24 15:41:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:12,186 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 284 transitions. [2020-09-24 15:41:12,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:41:12,187 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 284 transitions. [2020-09-24 15:41:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:41:12,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:12,198 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 15:41:12,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:41:12,199 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:12,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1956801941, now seen corresponding path program 1 times [2020-09-24 15:41:12,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:12,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521040318] [2020-09-24 15:41:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,330 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,330 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,330 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:41:12,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:41:12,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:41:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:12,705 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:12,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:12,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:12,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:12,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:12,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:12,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:12,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:12,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:12,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:12,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:12,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:12,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:12,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:12,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:12,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,815 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:12,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:12,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:12,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:12,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:12,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:12,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:41:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,820 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:12,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:12,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:12,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:12,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:41:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:12,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:12,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:12,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:12,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:12,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:12,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:12,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:12,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:12,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:12,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:12,894 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 15:41:12,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521040318] [2020-09-24 15:41:12,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:12,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:41:12,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63460959] [2020-09-24 15:41:12,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:41:12,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:12,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:41:12,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:41:12,901 INFO L87 Difference]: Start difference. First operand 260 states and 284 transitions. Second operand 4 states. [2020-09-24 15:41:13,552 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:14,655 INFO L93 Difference]: Finished difference Result 397 states and 450 transitions. [2020-09-24 15:41:14,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:41:14,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:41:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:14,661 INFO L225 Difference]: With dead ends: 397 [2020-09-24 15:41:14,662 INFO L226 Difference]: Without dead ends: 287 [2020-09-24 15:41:14,664 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 15:41:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-24 15:41:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 250. [2020-09-24 15:41:14,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-24 15:41:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 271 transitions. [2020-09-24 15:41:14,709 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 271 transitions. Word has length 143 [2020-09-24 15:41:14,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:14,709 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 271 transitions. [2020-09-24 15:41:14,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:41:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 271 transitions. [2020-09-24 15:41:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 15:41:14,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:14,713 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] [2020-09-24 15:41:14,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:41:14,714 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:14,714 INFO L82 PathProgramCache]: Analyzing trace with hash 156166343, now seen corresponding path program 1 times [2020-09-24 15:41:14,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:14,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814998792] [2020-09-24 15:41:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:14,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:41:14,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -42 [2020-09-24 15:41:14,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 42 [2020-09-24 15:41:14,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:14,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:41:14,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:14,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:14,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 15:41:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,129 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:15,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:15,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:15,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,246 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,246 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:15,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:15,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:15,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:15,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:41:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:15,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:15,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:41:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:41:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:15,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:41:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:15,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:15,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:15,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:15,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:15,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:15,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:15,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:15,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:15,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:15,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:15,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:15,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:15,325 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 15:41:15,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814998792] [2020-09-24 15:41:15,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:15,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:41:15,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715451498] [2020-09-24 15:41:15,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:41:15,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:15,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:41:15,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:41:15,328 INFO L87 Difference]: Start difference. First operand 250 states and 271 transitions. Second operand 5 states. [2020-09-24 15:41:15,970 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:18,023 INFO L93 Difference]: Finished difference Result 600 states and 700 transitions. [2020-09-24 15:41:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:41:18,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 15:41:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:18,034 INFO L225 Difference]: With dead ends: 600 [2020-09-24 15:41:18,034 INFO L226 Difference]: Without dead ends: 460 [2020-09-24 15:41:18,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:41:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-09-24 15:41:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 380. [2020-09-24 15:41:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 15:41:18,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 423 transitions. [2020-09-24 15:41:18,186 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 423 transitions. Word has length 156 [2020-09-24 15:41:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:18,188 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 423 transitions. [2020-09-24 15:41:18,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:41:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 423 transitions. [2020-09-24 15:41:18,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 15:41:18,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:18,191 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 15:41:18,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:41:18,192 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:18,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1551168922, now seen corresponding path program 1 times [2020-09-24 15:41:18,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:18,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398823929] [2020-09-24 15:41:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,281 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,282 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 15:41:18,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:41:18,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:41:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:41:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 15:41:18,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:18,657 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:18,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:18,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:18,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:41:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:18,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:18,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:18,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:18,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:18,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:18,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:18,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:18,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:18,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:18,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:18,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:18,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:18,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 15:41:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:18,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:18,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:41:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:18,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:18,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:18,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:18,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:18,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:41:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:18,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:18,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:18,873 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:18,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:18,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:18,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:18,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:18,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:18,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:18,918 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 15:41:18,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398823929] [2020-09-24 15:41:18,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:18,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:41:18,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502778528] [2020-09-24 15:41:18,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:41:18,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:18,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:41:18,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:41:18,921 INFO L87 Difference]: Start difference. First operand 380 states and 423 transitions. Second operand 9 states. [2020-09-24 15:41:19,410 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:20,712 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:21,088 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:21,561 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:21,962 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:22,281 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:22,725 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:41:23,051 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:23,651 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:24,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:24,768 INFO L93 Difference]: Finished difference Result 1032 states and 1239 transitions. [2020-09-24 15:41:24,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:24,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 15:41:24,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:24,776 INFO L225 Difference]: With dead ends: 1032 [2020-09-24 15:41:24,776 INFO L226 Difference]: Without dead ends: 762 [2020-09-24 15:41:24,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:41:24,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-09-24 15:41:24,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 623. [2020-09-24 15:41:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-09-24 15:41:24,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 706 transitions. [2020-09-24 15:41:24,880 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 706 transitions. Word has length 161 [2020-09-24 15:41:24,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:24,880 INFO L479 AbstractCegarLoop]: Abstraction has 623 states and 706 transitions. [2020-09-24 15:41:24,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:41:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 706 transitions. [2020-09-24 15:41:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:41:24,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:24,884 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 15:41:24,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:41:24,885 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:24,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:24,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1225724098, now seen corresponding path program 1 times [2020-09-24 15:41:24,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:24,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534888948] [2020-09-24 15:41:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:24,982 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:24,983 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:24,983 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:24,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:41:24,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:41:24,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:41:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:41:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:41:24,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,288 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:25,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:25,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:41:25,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:25,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:25,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:25,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:25,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:25,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:25,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:41:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:25,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:41:25,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:41:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:25,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:25,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:41:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:25,516 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:25,516 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:25,516 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:25,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:25,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:25,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:25,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:25,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:25,613 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 15:41:25,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534888948] [2020-09-24 15:41:25,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:25,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:25,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534027196] [2020-09-24 15:41:25,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:25,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:25,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:25,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:25,616 INFO L87 Difference]: Start difference. First operand 623 states and 706 transitions. Second operand 10 states. [2020-09-24 15:41:26,216 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:27,545 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:27,858 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:28,177 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:28,515 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:41:28,817 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:29,544 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:29,843 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:30,222 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:31,411 INFO L93 Difference]: Finished difference Result 1704 states and 2115 transitions. [2020-09-24 15:41:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:41:31,412 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-24 15:41:31,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:31,424 INFO L225 Difference]: With dead ends: 1704 [2020-09-24 15:41:31,425 INFO L226 Difference]: Without dead ends: 1191 [2020-09-24 15:41:31,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:41:31,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2020-09-24 15:41:31,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 955. [2020-09-24 15:41:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2020-09-24 15:41:31,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1110 transitions. [2020-09-24 15:41:31,661 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1110 transitions. Word has length 166 [2020-09-24 15:41:31,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:31,662 INFO L479 AbstractCegarLoop]: Abstraction has 955 states and 1110 transitions. [2020-09-24 15:41:31,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:31,663 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1110 transitions. [2020-09-24 15:41:31,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 15:41:31,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:31,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:31,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:41:31,668 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:31,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:31,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1366553455, now seen corresponding path program 1 times [2020-09-24 15:41:31,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:31,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693242777] [2020-09-24 15:41:31,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:31,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:31,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:31,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:31,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:31,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 15:41:31,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:41:31,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 15:41:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:32,029 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:32,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,038 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:32,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:32,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:32,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:32,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:32,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:32,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:32,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:41:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:32,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:41:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:41:32,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:32,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:32,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 15:41:32,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:32,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:32,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:32,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:41:32,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:41:32,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:41:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:32,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:41:32,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:41:32,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,246 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:32,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:32,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:32,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:41:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:32,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:32,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 15:41:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:32,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:32,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:32,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:32,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:32,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:32,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:32,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:32,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:32,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:32,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:32,299 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 15:41:32,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693242777] [2020-09-24 15:41:32,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:32,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:41:32,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61646507] [2020-09-24 15:41:32,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:41:32,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:32,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:41:32,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:41:32,302 INFO L87 Difference]: Start difference. First operand 955 states and 1110 transitions. Second operand 11 states. [2020-09-24 15:41:33,804 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:34,097 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:34,394 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:34,720 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:35,065 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:35,369 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:37,029 INFO L93 Difference]: Finished difference Result 2329 states and 2942 transitions. [2020-09-24 15:41:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:41:37,030 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 15:41:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:37,042 INFO L225 Difference]: With dead ends: 2329 [2020-09-24 15:41:37,043 INFO L226 Difference]: Without dead ends: 1484 [2020-09-24 15:41:37,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:41:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2020-09-24 15:41:37,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 993. [2020-09-24 15:41:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-09-24 15:41:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1150 transitions. [2020-09-24 15:41:37,198 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1150 transitions. Word has length 199 [2020-09-24 15:41:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:37,199 INFO L479 AbstractCegarLoop]: Abstraction has 993 states and 1150 transitions. [2020-09-24 15:41:37,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:41:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1150 transitions. [2020-09-24 15:41:37,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 15:41:37,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:37,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:37,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:41:37,204 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:37,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:37,205 INFO L82 PathProgramCache]: Analyzing trace with hash 392683279, now seen corresponding path program 1 times [2020-09-24 15:41:37,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:37,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107808456] [2020-09-24 15:41:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:41:37,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -78 [2020-09-24 15:41:37,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 78 [2020-09-24 15:41:37,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 15:41:37,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:41:37,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 15:41:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:37,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,562 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:37,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:37,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:37,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:37,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:37,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,645 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,645 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,646 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:37,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:41:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,658 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:37,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:41:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:41:37,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:37,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 15:41:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:37,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:37,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:37,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:41:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:37,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:37,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:37,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:41:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:41:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:41:37,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:37,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:37,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:41:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:37,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:37,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:41:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:41:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:37,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 15:41:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:37,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:37,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:37,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:37,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:37,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:37,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:37,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:41:37,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:37,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:37,830 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 15:41:37,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107808456] [2020-09-24 15:41:37,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:37,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:41:37,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359818266] [2020-09-24 15:41:37,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:41:37,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:37,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:41:37,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:41:37,833 INFO L87 Difference]: Start difference. First operand 993 states and 1150 transitions. Second operand 10 states. [2020-09-24 15:41:39,301 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:41:39,625 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:41:39,949 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:40,286 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:41:40,596 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:41:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:42,507 INFO L93 Difference]: Finished difference Result 2411 states and 3087 transitions. [2020-09-24 15:41:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:41:42,508 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-24 15:41:42,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:42,521 INFO L225 Difference]: With dead ends: 2411 [2020-09-24 15:41:42,521 INFO L226 Difference]: Without dead ends: 1528 [2020-09-24 15:41:42,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:41:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2020-09-24 15:41:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1017. [2020-09-24 15:41:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-09-24 15:41:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1174 transitions. [2020-09-24 15:41:42,695 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1174 transitions. Word has length 199 [2020-09-24 15:41:42,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:42,696 INFO L479 AbstractCegarLoop]: Abstraction has 1017 states and 1174 transitions. [2020-09-24 15:41:42,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:41:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1174 transitions. [2020-09-24 15:41:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 15:41:42,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:42,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:42,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:41:42,702 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:42,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:42,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1247610702, now seen corresponding path program 1 times [2020-09-24 15:41:42,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:42,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951746408] [2020-09-24 15:41:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:42,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:42,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:42,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:42,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:42,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 15:41:42,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:41:42,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:41:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:41:42,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 15:41:42,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:43,166 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:41:43,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:41:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:41:43,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:43,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:41:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:41:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,304 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,305 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,305 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:43,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:41:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:41:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:43,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:43,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:43,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:41:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:43,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:43,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:41:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:41:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:41:43,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:43,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:41:43,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:41:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:41:43,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:43,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:41:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:43,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:41:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,379 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:43,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:43,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:41:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:41:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:41:43,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:43,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 15:41:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 15:41:43,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:41:43,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:43,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:41:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:43,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:41:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:41:43,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:43,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:41:43,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:43,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:41:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:41:43,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:41:43,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:41:43,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:43,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:41:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:41:43,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:41:43,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:41:43,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:41:43,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:41:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:41:43,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:41:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:43,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:43,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:43,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:43,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 15:41:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:41:43,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:41:43,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:41:43,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:41:43,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:41:43,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:41:43,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:41:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:41:43,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:41:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:41:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:41:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:41:43,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:41:43,562 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 15:41:43,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951746408] [2020-09-24 15:41:43,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:41:43,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:41:43,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525519349] [2020-09-24 15:41:43,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:41:43,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:41:43,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:41:43,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:41:43,564 INFO L87 Difference]: Start difference. First operand 1017 states and 1174 transitions. Second operand 8 states. [2020-09-24 15:41:44,141 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:44,799 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:41:49,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:41:49,059 INFO L93 Difference]: Finished difference Result 3693 states and 4772 transitions. [2020-09-24 15:41:49,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 15:41:49,060 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-09-24 15:41:49,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:41:49,077 INFO L225 Difference]: With dead ends: 3693 [2020-09-24 15:41:49,078 INFO L226 Difference]: Without dead ends: 2786 [2020-09-24 15:41:49,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:41:49,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2020-09-24 15:41:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1987. [2020-09-24 15:41:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1987 states. [2020-09-24 15:41:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2312 transitions. [2020-09-24 15:41:49,370 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2312 transitions. Word has length 199 [2020-09-24 15:41:49,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:41:49,371 INFO L479 AbstractCegarLoop]: Abstraction has 1987 states and 2312 transitions. [2020-09-24 15:41:49,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:41:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2312 transitions. [2020-09-24 15:41:49,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 15:41:49,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:41:49,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:41:49,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:41:49,376 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:41:49,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:41:49,376 INFO L82 PathProgramCache]: Analyzing trace with hash -735617704, now seen corresponding path program 1 times [2020-09-24 15:41:49,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:41:49,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353040674] [2020-09-24 15:41:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:41:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:41:49,503 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:41:49,503 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:41:49,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:41:49,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:41:49 BoogieIcfgContainer [2020-09-24 15:41:49,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:41:49,569 INFO L168 Benchmark]: Toolchain (without parser) took 42413.48 ms. Allocated memory was 138.4 MB in the beginning and 843.1 MB in the end (delta: 704.6 MB). Free memory was 100.9 MB in the beginning and 469.4 MB in the end (delta: -368.5 MB). Peak memory consumption was 336.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:49,573 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:41:49,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.29 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 171.9 MB in the end (delta: -71.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:49,582 INFO L168 Benchmark]: Boogie Preprocessor took 110.61 ms. Allocated memory is still 202.4 MB. Free memory was 171.9 MB in the beginning and 167.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:49,583 INFO L168 Benchmark]: RCFGBuilder took 1320.89 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 167.6 MB in the beginning and 177.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:49,583 INFO L168 Benchmark]: TraceAbstraction took 40250.60 ms. Allocated memory was 233.3 MB in the beginning and 843.1 MB in the end (delta: 609.7 MB). Free memory was 177.3 MB in the beginning and 469.4 MB in the end (delta: -292.1 MB). Peak memory consumption was 317.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:41:49,591 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.29 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 171.9 MB in the end (delta: -71.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.61 ms. Allocated memory is still 202.4 MB. Free memory was 171.9 MB in the beginning and 167.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1320.89 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 167.6 MB in the beginning and 177.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40250.60 ms. Allocated memory was 233.3 MB in the beginning and 843.1 MB in the end (delta: 609.7 MB). Free memory was 177.3 MB in the beginning and 469.4 MB in the end (delta: -292.1 MB). Peak memory consumption was 317.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 490]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; [L428] int retValue_acc ; [L429] int tmp ; [L433] FCALL select_helpers() [L434] FCALL select_features() [L435] CALL, EXPR valid_product() [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] return (retValue_acc); [L435] RET, EXPR valid_product() [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) [L439] FCALL setup() [L440] CALL runTest() [L419] CALL test() [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 [L266] COND TRUE 1 [L268] COND TRUE splverifierCounter < 4 [L274] tmp = __VERIFIER_nondet_int() [L276] COND TRUE \read(tmp) [L278] CALL waterRise() [L880] COND TRUE waterLevel < 2 [L881] waterLevel = waterLevel + 1 [L278] RET waterRise() [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp___0) [L288] CALL changeMethaneLevel() [L892] COND FALSE !(\read(methaneLevelCritical)) [L895] methaneLevelCritical = 1 [L288] RET changeMethaneLevel() [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___2) [L298] CALL startSystem() [L248] systemActive = 1 [L298] RET startSystem() [L313] CALL timeShift() [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L68] CALL processEnvironment() [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L132] CALL processEnvironment__wrappee__highWaterSensor() [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L93] CALL, EXPR isHighWaterLevel() [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; [L217] CALL, EXPR isHighWaterSensorDry() [L942] int retValue_acc ; [L945] COND FALSE !(waterLevel < 2) [L949] retValue_acc = 0 [L950] return (retValue_acc); [L217] RET, EXPR isHighWaterSensorDry() [L217] tmp = isHighWaterSensorDry() [L219] COND FALSE !(\read(tmp)) [L222] tmp___0 = 1 [L224] retValue_acc = tmp___0 [L225] return (retValue_acc); [L93] RET, EXPR isHighWaterLevel() [L93] tmp = isHighWaterLevel() [L95] COND TRUE \read(tmp) [L97] CALL activatePump() [L142] pumpRunning = 1 [L97] RET activatePump() [L132] RET processEnvironment__wrappee__highWaterSensor() [L68] RET processEnvironment() [L74] CALL __utac_acc__Specification1_spec__1() [L327] int tmp ; [L328] int tmp___0 ; [L332] CALL, EXPR isMethaneLevelCritical() [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] return (retValue_acc); [L332] RET, EXPR isMethaneLevelCritical() [L332] tmp = isMethaneLevelCritical() [L334] COND TRUE \read(tmp) [L336] CALL, EXPR isPumpRunning() [L166] int retValue_acc ; [L169] retValue_acc = pumpRunning [L170] return (retValue_acc); [L336] RET, EXPR isPumpRunning() [L336] tmp___0 = isPumpRunning() [L338] COND TRUE \read(tmp___0) [L340] CALL __automaton_fail() [L490] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 32.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2011 SDtfs, 4268 SDslu, 3111 SDs, 0 SdLazy, 7277 SolverSat, 1411 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1987occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 2337 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1569 NumberOfCodeBlocks, 1569 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1357 ConstructedInterpolants, 0 QuantifiedInterpolants, 599506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...