/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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:03,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:03,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:03,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:03,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:03,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:03,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:03,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:03,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:03,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:03,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:03,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:03,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:03,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:03,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:03,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:03,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:03,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:03,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:03,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:03,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:03,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:03,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:03,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:03,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:03,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:03,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:03,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:03,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:03,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:03,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:03,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:03,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:03,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:03,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:03,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:03,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:03,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:03,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:03,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:03,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:03,610 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 11:10:03,663 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:03,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:03,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:03,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:03,666 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:03,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:03,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:03,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:03,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:03,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:03,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:03,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:03,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:03,669 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:03,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:03,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:03,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:03,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:03,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:03,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:03,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:03,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:03,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:03,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:03,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:03,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:03,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:03,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:03,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:03,674 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 11:10:04,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:04,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:04,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:04,190 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:04,191 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:04,192 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-21 11:10:04,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcd9e1e71/45cf54a753d24959923c25cacf8b1b7d/FLAG35fbc5981 [2020-09-21 11:10:04,881 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:04,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-21 11:10:04,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcd9e1e71/45cf54a753d24959923c25cacf8b1b7d/FLAG35fbc5981 [2020-09-21 11:10:05,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcd9e1e71/45cf54a753d24959923c25cacf8b1b7d [2020-09-21 11:10:05,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:05,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:05,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:05,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:05,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:05,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:05" (1/1) ... [2020-09-21 11:10:05,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:05, skipping insertion in model container [2020-09-21 11:10:05,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:05" (1/1) ... [2020-09-21 11:10:05,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:05,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:05,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:05,825 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:05,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:06,015 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:06,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06 WrapperNode [2020-09-21 11:10:06,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:06,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:06,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:06,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:06,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (1/1) ... [2020-09-21 11:10:06,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (1/1) ... [2020-09-21 11:10:06,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (1/1) ... [2020-09-21 11:10:06,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (1/1) ... [2020-09-21 11:10:06,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (1/1) ... [2020-09-21 11:10:06,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (1/1) ... [2020-09-21 11:10:06,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (1/1) ... [2020-09-21 11:10:06,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:06,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:06,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:06,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:06,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (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 11:10:06,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:06,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:06,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:06,203 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:06,205 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:10:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:06,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:06,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:06,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:06,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:06,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:06,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:10:06,211 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:06,212 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:06,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:06,212 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:06,212 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:10:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:10:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 11:10:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:06,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:06,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:06,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:06,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:07,422 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:07,422 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:07,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:07 BoogieIcfgContainer [2020-09-21 11:10:07,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:07,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:07,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:07,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:07,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:05" (1/3) ... [2020-09-21 11:10:07,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49574e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:07, skipping insertion in model container [2020-09-21 11:10:07,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:06" (2/3) ... [2020-09-21 11:10:07,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49574e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:07, skipping insertion in model container [2020-09-21 11:10:07,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:07" (3/3) ... [2020-09-21 11:10:07,445 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-09-21 11:10:07,458 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:07,471 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:07,497 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:07,542 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:07,542 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:07,542 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:07,542 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:07,543 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:07,543 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:07,543 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:07,543 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:07,584 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-09-21 11:10:07,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:07,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:07,605 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 11:10:07,606 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:07,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:07,614 INFO L82 PathProgramCache]: Analyzing trace with hash -527888635, now seen corresponding path program 1 times [2020-09-21 11:10:07,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:07,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124097357] [2020-09-21 11:10:07,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:08,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:10:08,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:10:08,516 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:08,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:08,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:10:08,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:08,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:08,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,670 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,671 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:08,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:08,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:08,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:08,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:08,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:08,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:08,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:08,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:08,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:08,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:08,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:08,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,739 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 11:10:08,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124097357] [2020-09-21 11:10:08,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:08,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:08,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73145769] [2020-09-21 11:10:08,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:08,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:08,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:08,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:08,800 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-09-21 11:10:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:09,842 INFO L93 Difference]: Finished difference Result 273 states and 360 transitions. [2020-09-21 11:10:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:09,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:09,862 INFO L225 Difference]: With dead ends: 273 [2020-09-21 11:10:09,862 INFO L226 Difference]: Without dead ends: 148 [2020-09-21 11:10:09,868 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 11:10:09,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-21 11:10:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2020-09-21 11:10:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-21 11:10:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2020-09-21 11:10:09,987 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 52 [2020-09-21 11:10:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:09,988 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2020-09-21 11:10:09,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2020-09-21 11:10:10,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:10,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:10,004 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 11:10:10,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:10,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:10,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:10,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1019297795, now seen corresponding path program 1 times [2020-09-21 11:10:10,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:10,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113399463] [2020-09-21 11:10:10,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,108 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,108 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,109 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:10,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:10:10,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:10,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,421 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:10,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:10,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:10,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:10,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:10,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,478 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:10,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:10,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:10,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:10,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,494 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,494 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:10,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:10,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:10,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:10,500 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:10,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:10,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:10,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:10,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:10,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:10,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:10,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:10,510 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 11:10:10,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113399463] [2020-09-21 11:10:10,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:10,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:10,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687371703] [2020-09-21 11:10:10,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:10,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:10,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:10,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:10,514 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 4 states. [2020-09-21 11:10:10,935 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:11,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:11,711 INFO L93 Difference]: Finished difference Result 200 states and 243 transitions. [2020-09-21 11:10:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:11,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:11,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:11,721 INFO L225 Difference]: With dead ends: 200 [2020-09-21 11:10:11,721 INFO L226 Difference]: Without dead ends: 132 [2020-09-21 11:10:11,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:11,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-21 11:10:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2020-09-21 11:10:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-21 11:10:11,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2020-09-21 11:10:11,758 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 53 [2020-09-21 11:10:11,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:11,759 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2020-09-21 11:10:11,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2020-09-21 11:10:11,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:11,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:11,761 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 11:10:11,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:11,762 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:11,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:11,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1975816461, now seen corresponding path program 1 times [2020-09-21 11:10:11,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:11,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386104505] [2020-09-21 11:10:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:12,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:12,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-09-21 11:10:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,556 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:12,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:12,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:10:12,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:12,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:12,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:12,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:12,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:12,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:12,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:12,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:12,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:12,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:12,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:12,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:12,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:12,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:12,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:12,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:12,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:12,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:12,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:12,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:12,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:12,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:12,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:12,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:12,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:12,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:12,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:12,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:12,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:12,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:12,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:12,720 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 11:10:12,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386104505] [2020-09-21 11:10:12,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:12,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:12,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264803646] [2020-09-21 11:10:12,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:12,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:12,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:12,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:12,722 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand 4 states. [2020-09-21 11:10:13,039 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:14,444 INFO L93 Difference]: Finished difference Result 308 states and 380 transitions. [2020-09-21 11:10:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:14,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:14,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:14,449 INFO L225 Difference]: With dead ends: 308 [2020-09-21 11:10:14,449 INFO L226 Difference]: Without dead ends: 225 [2020-09-21 11:10:14,450 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 11:10:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-09-21 11:10:14,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 184. [2020-09-21 11:10:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-09-21 11:10:14,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 219 transitions. [2020-09-21 11:10:14,507 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 219 transitions. Word has length 57 [2020-09-21 11:10:14,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:14,507 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 219 transitions. [2020-09-21 11:10:14,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 219 transitions. [2020-09-21 11:10:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:14,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:14,509 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 11:10:14,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:14,510 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:14,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:14,510 INFO L82 PathProgramCache]: Analyzing trace with hash -872029399, now seen corresponding path program 1 times [2020-09-21 11:10:14,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:14,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504304243] [2020-09-21 11:10:14,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:14,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:14,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:14,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:14,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:14,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:14,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:14,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-21 11:10:14,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:14,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:15,285 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:15,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:15,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:10:15,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:15,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:15,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:15,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:15,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:15,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:15,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:15,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:15,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:15,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:15,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:15,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:15,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:15,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:15,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:15,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:15,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:15,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:15,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:15,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:15,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:15,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:15,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:15,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:15,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:15,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:15,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:15,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:15,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:15,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:15,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:15,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:15,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:15,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:15,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:15,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:15,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:15,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:15,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:15,537 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 11:10:15,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504304243] [2020-09-21 11:10:15,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:15,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:15,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454075803] [2020-09-21 11:10:15,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:15,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:15,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:15,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:15,541 INFO L87 Difference]: Start difference. First operand 184 states and 219 transitions. Second operand 8 states. [2020-09-21 11:10:16,136 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:17,545 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:17,926 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:18,244 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:18,585 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:19,293 INFO L93 Difference]: Finished difference Result 564 states and 736 transitions. [2020-09-21 11:10:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:19,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:10:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:19,306 INFO L225 Difference]: With dead ends: 564 [2020-09-21 11:10:19,306 INFO L226 Difference]: Without dead ends: 404 [2020-09-21 11:10:19,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-21 11:10:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 343. [2020-09-21 11:10:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-09-21 11:10:19,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 419 transitions. [2020-09-21 11:10:19,396 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 419 transitions. Word has length 63 [2020-09-21 11:10:19,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:19,396 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 419 transitions. [2020-09-21 11:10:19,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 419 transitions. [2020-09-21 11:10:19,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:19,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:19,399 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 11:10:19,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:19,399 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:19,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:19,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1962322353, now seen corresponding path program 1 times [2020-09-21 11:10:19,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:19,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345100605] [2020-09-21 11:10:19,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:19,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:19,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:19,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:19,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:19,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:10:19,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-21 11:10:19,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:10:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:10:19,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:20,142 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:20,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:20,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:10:20,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:20,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:20,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:20,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:20,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:20,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:20,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:20,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:20,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:20,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:20,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:20,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:10:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:20,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:20,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:10:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:20,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:10:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:20,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:10:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:20,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:20,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:20,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:20,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:20,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:20,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:20,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:20,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:20,339 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 11:10:20,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345100605] [2020-09-21 11:10:20,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:20,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:10:20,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407232634] [2020-09-21 11:10:20,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:10:20,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:20,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:10:20,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:10:20,342 INFO L87 Difference]: Start difference. First operand 343 states and 419 transitions. Second operand 6 states. [2020-09-21 11:10:20,742 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:21,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:21,551 INFO L93 Difference]: Finished difference Result 569 states and 721 transitions. [2020-09-21 11:10:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:10:21,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-09-21 11:10:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:21,554 INFO L225 Difference]: With dead ends: 569 [2020-09-21 11:10:21,554 INFO L226 Difference]: Without dead ends: 250 [2020-09-21 11:10:21,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:10:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-21 11:10:21,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 233. [2020-09-21 11:10:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-21 11:10:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 266 transitions. [2020-09-21 11:10:21,620 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 266 transitions. Word has length 67 [2020-09-21 11:10:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:21,620 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 266 transitions. [2020-09-21 11:10:21,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:10:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 266 transitions. [2020-09-21 11:10:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:21,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:21,622 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 11:10:21,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:21,623 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:21,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1867456273, now seen corresponding path program 1 times [2020-09-21 11:10:21,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:21,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164084159] [2020-09-21 11:10:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:21,688 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:21,688 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:21,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:10:21,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:21 BoogieIcfgContainer [2020-09-21 11:10:21,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:21,721 INFO L168 Benchmark]: Toolchain (without parser) took 16553.07 ms. Allocated memory was 140.5 MB in the beginning and 490.7 MB in the end (delta: 350.2 MB). Free memory was 101.4 MB in the beginning and 203.6 MB in the end (delta: -102.2 MB). Peak memory consumption was 248.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:21,722 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:10:21,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.35 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 172.8 MB in the end (delta: -72.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:21,724 INFO L168 Benchmark]: Boogie Preprocessor took 94.70 ms. Allocated memory is still 203.9 MB. Free memory was 172.8 MB in the beginning and 168.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:21,724 INFO L168 Benchmark]: RCFGBuilder took 1319.35 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 168.8 MB in the beginning and 197.4 MB in the end (delta: -28.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:21,725 INFO L168 Benchmark]: TraceAbstraction took 14283.58 ms. Allocated memory was 236.5 MB in the beginning and 490.7 MB in the end (delta: 254.3 MB). Free memory was 196.0 MB in the beginning and 203.6 MB in the end (delta: -7.6 MB). Peak memory consumption was 246.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:21,729 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 842.35 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 172.8 MB in the end (delta: -72.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.70 ms. Allocated memory is still 203.9 MB. Free memory was 172.8 MB in the beginning and 168.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1319.35 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 168.8 MB in the beginning and 197.4 MB in the end (delta: -28.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14283.58 ms. Allocated memory was 236.5 MB in the beginning and 490.7 MB in the end (delta: 254.3 MB). Free memory was 196.0 MB in the beginning and 203.6 MB in the end (delta: -7.6 MB). Peak memory consumption was 246.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; [L917] int retValue_acc ; [L918] int tmp ; [L922] FCALL select_helpers() [L923] FCALL select_features() [L924] CALL, EXPR valid_product() [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); [L924] RET, EXPR valid_product() [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) [L928] FCALL setup() [L929] CALL runTest() [L911] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L294] COND FALSE !(\read(pumpRunning)) [L301] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L315] CALL, EXPR isMethaneLevelCritical() [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); [L315] RET, EXPR isMethaneLevelCritical() [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L321] CALL, EXPR getWaterLevel() [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); [L321] RET, EXPR getWaterLevel() [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L325] CALL, EXPR isPumpRunning() [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); [L325] RET, EXPR isPumpRunning() [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) [L331] CALL __automaton_fail() [L346] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 499 SDtfs, 678 SDslu, 253 SDs, 0 SdLazy, 1230 SolverSat, 412 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=343occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 176 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s 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...