/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:46,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:46,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:46,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:46,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:46,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:46,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:46,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:46,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:46,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:46,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:46,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:46,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:46,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:46,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:46,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:46,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:46,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:46,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:46,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:46,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:46,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:46,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:46,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:46,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:46,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:46,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:46,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:46,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:46,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:46,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:46,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:46,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:46,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:46,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:46,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:46,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:46,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:46,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:46,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:46,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:46,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:10:46,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:46,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:46,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:46,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:46,648 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:46,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:46,648 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:46,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:46,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:46,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:46,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:46,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:46,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:46,649 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:46,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:46,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:46,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:46,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:46,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:46,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:46,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:46,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:46,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:46,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:46,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:46,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:46,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:46,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:46,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:46,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:10:47,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:47,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:47,135 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:47,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:47,138 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:47,139 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-21 11:10:47,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df2e4eff3/dee7d65c4ec344e4be12593958479aa8/FLAG846e18e27 [2020-09-21 11:10:47,909 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:47,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-21 11:10:47,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df2e4eff3/dee7d65c4ec344e4be12593958479aa8/FLAG846e18e27 [2020-09-21 11:10:48,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df2e4eff3/dee7d65c4ec344e4be12593958479aa8 [2020-09-21 11:10:48,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:48,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:48,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:48,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:48,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:48,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2d0e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48, skipping insertion in model container [2020-09-21 11:10:48,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:48,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:48,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:48,725 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:48,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:48,913 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:48,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48 WrapperNode [2020-09-21 11:10:48,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:48,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:48,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:48,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:48,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:48,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:49,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:49,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... [2020-09-21 11:10:49,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:49,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:49,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:49,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:49,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:10:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:10:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:49,152 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:49,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:10:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:10:49,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:10:49,156 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:10:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:10:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:10:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:10:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:10:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:50,477 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:50,477 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:50,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:50 BoogieIcfgContainer [2020-09-21 11:10:50,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:50,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:50,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:50,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:50,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:48" (1/3) ... [2020-09-21 11:10:50,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:50, skipping insertion in model container [2020-09-21 11:10:50,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:48" (2/3) ... [2020-09-21 11:10:50,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4e7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:50, skipping insertion in model container [2020-09-21 11:10:50,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:50" (3/3) ... [2020-09-21 11:10:50,501 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-09-21 11:10:50,513 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:50,527 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:50,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:50,576 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:50,576 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:50,576 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:50,576 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:50,576 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:50,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:50,577 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:50,577 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2020-09-21 11:10:50,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:50,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:50,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:10:50,624 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:50,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:50,633 INFO L82 PathProgramCache]: Analyzing trace with hash 2059475727, now seen corresponding path program 1 times [2020-09-21 11:10:50,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:50,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220123372] [2020-09-21 11:10:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:51,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:10:51,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-21 11:10:51,453 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:51,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:51,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:51,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:51,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:51,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:51,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:51,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:51,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:51,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:51,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:51,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:51,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:51,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:51,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220123372] [2020-09-21 11:10:51,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:51,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:51,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401647131] [2020-09-21 11:10:51,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:51,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:51,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:51,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:51,727 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 3 states. [2020-09-21 11:10:53,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:53,068 INFO L93 Difference]: Finished difference Result 349 states and 451 transitions. [2020-09-21 11:10:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:53,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:53,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:53,106 INFO L225 Difference]: With dead ends: 349 [2020-09-21 11:10:53,106 INFO L226 Difference]: Without dead ends: 188 [2020-09-21 11:10:53,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:53,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-09-21 11:10:53,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 152. [2020-09-21 11:10:53,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-21 11:10:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 179 transitions. [2020-09-21 11:10:53,264 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 179 transitions. Word has length 52 [2020-09-21 11:10:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:53,265 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 179 transitions. [2020-09-21 11:10:53,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:53,265 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 179 transitions. [2020-09-21 11:10:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:53,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:53,278 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] [2020-09-21 11:10:53,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:53,279 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:53,279 INFO L82 PathProgramCache]: Analyzing trace with hash 342362752, now seen corresponding path program 1 times [2020-09-21 11:10:53,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:53,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721778162] [2020-09-21 11:10:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:53,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:10:53,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:53,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,688 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:53,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:53,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:53,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:53,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:53,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:53,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,764 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:53,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:53,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:53,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:53,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:53,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:53,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:53,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:53,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:53,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:53,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:53,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:53,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721778162] [2020-09-21 11:10:53,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:53,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:53,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317623397] [2020-09-21 11:10:53,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:53,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:53,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:53,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:53,784 INFO L87 Difference]: Start difference. First operand 152 states and 179 transitions. Second operand 4 states. [2020-09-21 11:10:54,286 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:55,426 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2020-09-21 11:10:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:55,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:55,431 INFO L225 Difference]: With dead ends: 276 [2020-09-21 11:10:55,432 INFO L226 Difference]: Without dead ends: 172 [2020-09-21 11:10:55,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:55,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-09-21 11:10:55,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 143. [2020-09-21 11:10:55,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-09-21 11:10:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2020-09-21 11:10:55,473 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 53 [2020-09-21 11:10:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:55,474 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2020-09-21 11:10:55,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2020-09-21 11:10:55,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:55,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:55,476 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] [2020-09-21 11:10:55,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:55,477 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:55,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:55,477 INFO L82 PathProgramCache]: Analyzing trace with hash -970398275, now seen corresponding path program 1 times [2020-09-21 11:10:55,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:55,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888473989] [2020-09-21 11:10:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:55,939 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:55,940 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:55,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:55,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:55,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:55,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-21 11:10:55,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,280 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:56,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:10:56,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:56,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:56,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:56,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:56,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:56,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:56,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:56,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:56,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:56,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:56,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:56,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:56,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:56,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:56,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:56,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:56,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:56,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:56,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888473989] [2020-09-21 11:10:56,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:56,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:56,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464535760] [2020-09-21 11:10:56,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:56,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:56,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:56,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:56,452 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 4 states. [2020-09-21 11:10:56,837 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:58,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:58,696 INFO L93 Difference]: Finished difference Result 424 states and 519 transitions. [2020-09-21 11:10:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:58,697 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:58,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:58,702 INFO L225 Difference]: With dead ends: 424 [2020-09-21 11:10:58,703 INFO L226 Difference]: Without dead ends: 305 [2020-09-21 11:10:58,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:58,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-09-21 11:10:58,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 256. [2020-09-21 11:10:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-21 11:10:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 305 transitions. [2020-09-21 11:10:58,777 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 305 transitions. Word has length 57 [2020-09-21 11:10:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:58,777 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 305 transitions. [2020-09-21 11:10:58,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:58,777 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 305 transitions. [2020-09-21 11:10:58,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:58,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:58,779 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] [2020-09-21 11:10:58,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:58,780 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:58,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:58,780 INFO L82 PathProgramCache]: Analyzing trace with hash -542420815, now seen corresponding path program 1 times [2020-09-21 11:10:58,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:58,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582122948] [2020-09-21 11:10:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:59,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-09-21 11:10:59,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:59,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:59,710 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:59,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:59,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:10:59,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:59,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:59,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:59,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:59,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:59,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:59,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:59,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:59,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:59,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:59,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:59,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:59,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:59,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:59,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:59,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:59,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:59,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:59,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:59,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:59,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:59,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,929 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:59,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:59,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:59,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:59,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:59,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,938 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,938 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:59,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:59,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:59,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:59,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:59,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:59,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:59,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:59,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:59,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:59,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:59,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:59,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:59,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582122948] [2020-09-21 11:10:59,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:59,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:59,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069453275] [2020-09-21 11:10:59,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:59,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:59,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:59,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:59,976 INFO L87 Difference]: Start difference. First operand 256 states and 305 transitions. Second operand 8 states. [2020-09-21 11:11:00,472 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:11:02,060 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:11:02,535 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:11:02,886 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:11:03,227 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:11:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:11:04,336 INFO L93 Difference]: Finished difference Result 796 states and 1024 transitions. [2020-09-21 11:11:04,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:11:04,337 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:11:04,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:11:04,343 INFO L225 Difference]: With dead ends: 796 [2020-09-21 11:11:04,344 INFO L226 Difference]: Without dead ends: 564 [2020-09-21 11:11:04,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:11:04,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-09-21 11:11:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 495. [2020-09-21 11:11:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-21 11:11:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 599 transitions. [2020-09-21 11:11:04,472 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 599 transitions. Word has length 63 [2020-09-21 11:11:04,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:11:04,472 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 599 transitions. [2020-09-21 11:11:04,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:11:04,473 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 599 transitions. [2020-09-21 11:11:04,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:11:04,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:11:04,476 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] [2020-09-21 11:11:04,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:11:04,477 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:11:04,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:11:04,477 INFO L82 PathProgramCache]: Analyzing trace with hash -785539273, now seen corresponding path program 1 times [2020-09-21 11:11:04,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:11:04,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880828953] [2020-09-21 11:11:04,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:11:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:04,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:04,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:04,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:04,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:04,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:11:04,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-21 11:11:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:11:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:11:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:11:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:11:05,160 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:11:05,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:11:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,230 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:05,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:11:05,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:11:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:11:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:11:05,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:05,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:05,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:11:05,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:11:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:11:05,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:11:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:11:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:05,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:11:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:11:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,286 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,286 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,287 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:11:05,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:11:05,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:11:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,301 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:11:05,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:11:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:11:05,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:11:05,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:11:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:11:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:05,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:11:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:11:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:11:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:11:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,323 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,323 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,323 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:05,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:11:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:11:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:11:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:11:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:11:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:11:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:11:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:11:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:11:05,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:11:05,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:11:05,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:11:05,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:11:05,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:11:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:11:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:11:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:11:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:11:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:11:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:11:05,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:11:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:11:05,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880828953] [2020-09-21 11:11:05,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:11:05,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:11:05,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11021484] [2020-09-21 11:11:05,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:11:05,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:11:05,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:11:05,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:11:05,348 INFO L87 Difference]: Start difference. First operand 495 states and 599 transitions. Second operand 6 states. [2020-09-21 11:11:05,830 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:11:07,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:11:07,904 INFO L93 Difference]: Finished difference Result 1216 states and 1563 transitions. [2020-09-21 11:11:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:11:07,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-09-21 11:11:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:11:07,911 INFO L225 Difference]: With dead ends: 1216 [2020-09-21 11:11:07,911 INFO L226 Difference]: Without dead ends: 745 [2020-09-21 11:11:07,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:11:07,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-09-21 11:11:08,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 679. [2020-09-21 11:11:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-09-21 11:11:08,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 824 transitions. [2020-09-21 11:11:08,036 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 824 transitions. Word has length 67 [2020-09-21 11:11:08,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:11:08,037 INFO L479 AbstractCegarLoop]: Abstraction has 679 states and 824 transitions. [2020-09-21 11:11:08,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:11:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 824 transitions. [2020-09-21 11:11:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:11:08,039 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:11:08,039 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] [2020-09-21 11:11:08,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:11:08,039 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:11:08,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:11:08,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1064344695, now seen corresponding path program 1 times [2020-09-21 11:11:08,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:11:08,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271970660] [2020-09-21 11:11:08,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:11:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:11:08,104 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:11:08,104 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:11:08,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:11:08,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:11:08 BoogieIcfgContainer [2020-09-21 11:11:08,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:11:08,140 INFO L168 Benchmark]: Toolchain (without parser) took 19976.10 ms. Allocated memory was 138.9 MB in the beginning and 539.5 MB in the end (delta: 400.6 MB). Free memory was 101.1 MB in the beginning and 177.5 MB in the end (delta: -76.4 MB). Peak memory consumption was 324.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:08,141 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:11:08,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.15 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 165.3 MB in the end (delta: -64.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:08,143 INFO L168 Benchmark]: Boogie Preprocessor took 133.68 ms. Allocated memory is still 201.9 MB. Free memory was 165.3 MB in the beginning and 161.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:08,143 INFO L168 Benchmark]: RCFGBuilder took 1437.06 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 161.1 MB in the beginning and 187.3 MB in the end (delta: -26.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:08,144 INFO L168 Benchmark]: TraceAbstraction took 17645.97 ms. Allocated memory was 233.8 MB in the beginning and 539.5 MB in the end (delta: 305.7 MB). Free memory was 187.3 MB in the beginning and 177.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 315.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:11:08,148 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.15 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 165.3 MB in the end (delta: -64.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.68 ms. Allocated memory is still 201.9 MB. Free memory was 165.3 MB in the beginning and 161.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1437.06 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 161.1 MB in the beginning and 187.3 MB in the end (delta: -26.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17645.97 ms. Allocated memory was 233.8 MB in the beginning and 539.5 MB in the end (delta: 305.7 MB). Free memory was 187.3 MB in the beginning and 177.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 315.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L596] int retValue_acc ; [L597] int tmp ; [L601] FCALL select_helpers() [L602] FCALL select_features() [L603] CALL, EXPR valid_product() [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); [L603] RET, EXPR valid_product() [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) [L607] FCALL setup() [L608] CALL runTest() [L587] CALL test() [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) [L722] CALL waterRise() [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 [L722] RET waterRise() [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) [L748] CALL stopSystem() [L987] COND FALSE !(\read(pumpRunning)) [L994] systemActive = 0 [L748] RET stopSystem() [L755] CALL timeShift() [L776] COND FALSE !(\read(pumpRunning)) [L783] COND FALSE !(\read(systemActive)) [L791] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L694] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 694 SDtfs, 1016 SDslu, 313 SDs, 0 SdLazy, 1849 SolverSat, 607 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=679occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 249 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 81118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...