/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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:30,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:30,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:30,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:30,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:30,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:30,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:30,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:30,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:30,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:30,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:30,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:30,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:30,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:30,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:30,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:30,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:30,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:30,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:30,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:30,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:30,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:30,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:30,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:30,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:30,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:30,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:30,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:30,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:30,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:30,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:30,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:30,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:30,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:30,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:30,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:30,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:30,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:30,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:30,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:30,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:30,239 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 11:09:30,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:30,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:30,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:30,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:30,304 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:30,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:30,304 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:30,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:30,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:30,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:30,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:30,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:30,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:30,307 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:30,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:30,307 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:30,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:30,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:30,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:30,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:30,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:30,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:30,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:30,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:30,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:30,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:30,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:30,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:30,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:30,312 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 11:09:30,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:30,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:30,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:30,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:30,821 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:30,822 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-21 11:09:30,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614d37983/a13fe3068c0c4a0cb5c18e533c9ba630/FLAG82213ce79 [2020-09-21 11:09:31,532 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:31,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-21 11:09:31,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614d37983/a13fe3068c0c4a0cb5c18e533c9ba630/FLAG82213ce79 [2020-09-21 11:09:31,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/614d37983/a13fe3068c0c4a0cb5c18e533c9ba630 [2020-09-21 11:09:31,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:31,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:31,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:31,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:31,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:31,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:31" (1/1) ... [2020-09-21 11:09:31,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:31, skipping insertion in model container [2020-09-21 11:09:31,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:31" (1/1) ... [2020-09-21 11:09:31,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:31,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:32,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:32,470 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:32,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:32,644 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:32,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32 WrapperNode [2020-09-21 11:09:32,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:32,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:32,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:32,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:32,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (1/1) ... [2020-09-21 11:09:32,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (1/1) ... [2020-09-21 11:09:32,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (1/1) ... [2020-09-21 11:09:32,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (1/1) ... [2020-09-21 11:09:32,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (1/1) ... [2020-09-21 11:09:32,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (1/1) ... [2020-09-21 11:09:32,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (1/1) ... [2020-09-21 11:09:32,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:32,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:32,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:32,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:32,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (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 11:09:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:32,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:32,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:32,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:32,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:32,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:32,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:32,848 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:32,848 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:32,849 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:32,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:32,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:32,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:32,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:32,850 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:09:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:32,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:32,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:32,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:32,853 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:09:32,853 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:09:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:32,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:32,855 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:32,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:32,856 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:32,856 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:32,856 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:32,856 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:32,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:32,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:32,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:32,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:32,860 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:09:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:09:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:32,861 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:32,862 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:32,863 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:09:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:32,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:32,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:34,030 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:34,030 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:34,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:34 BoogieIcfgContainer [2020-09-21 11:09:34,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:34,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:34,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:34,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:34,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:31" (1/3) ... [2020-09-21 11:09:34,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:34, skipping insertion in model container [2020-09-21 11:09:34,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:32" (2/3) ... [2020-09-21 11:09:34,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:34, skipping insertion in model container [2020-09-21 11:09:34,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:34" (3/3) ... [2020-09-21 11:09:34,055 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-09-21 11:09:34,067 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:34,084 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:34,104 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:34,133 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:34,133 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:34,133 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:34,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:34,134 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:34,134 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:34,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:34,134 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-09-21 11:09:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:34,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:34,185 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 11:09:34,185 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:34,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:34,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times [2020-09-21 11:09:34,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:34,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451852264] [2020-09-21 11:09:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:34,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:34,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:34,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:34,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:34,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:34,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:34,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:09:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,021 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:35,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:35,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,172 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,172 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:35,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:09:35,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:35,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:35,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:35,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:35,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:35,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:35,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:35,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:35,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:35,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:35,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:35,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:35,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:35,263 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 11:09:35,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451852264] [2020-09-21 11:09:35,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:35,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:35,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753120255] [2020-09-21 11:09:35,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:35,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:35,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:35,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:35,297 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2020-09-21 11:09:36,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:36,381 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-09-21 11:09:36,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:36,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:36,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:36,403 INFO L225 Difference]: With dead ends: 272 [2020-09-21 11:09:36,403 INFO L226 Difference]: Without dead ends: 148 [2020-09-21 11:09:36,409 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 11:09:36,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-21 11:09:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-09-21 11:09:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-21 11:09:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-09-21 11:09:36,519 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-09-21 11:09:36,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:36,520 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-09-21 11:09:36,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-09-21 11:09:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:36,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:36,525 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 11:09:36,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:36,526 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:36,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:36,526 INFO L82 PathProgramCache]: Analyzing trace with hash 883286197, now seen corresponding path program 1 times [2020-09-21 11:09:36,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:36,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973195899] [2020-09-21 11:09:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:36,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:09:36,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:36,900 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:36,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:36,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:36,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:36,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:36,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,957 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:36,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,963 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,963 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:36,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,967 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:36,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,973 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,973 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:36,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:36,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:36,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:36,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:36,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:36,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:36,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:36,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:36,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:36,989 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 11:09:36,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973195899] [2020-09-21 11:09:36,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:36,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:36,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433797458] [2020-09-21 11:09:36,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:36,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:36,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:36,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:36,993 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-09-21 11:09:37,416 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:38,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:38,082 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-09-21 11:09:38,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:38,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:38,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:38,086 INFO L225 Difference]: With dead ends: 195 [2020-09-21 11:09:38,086 INFO L226 Difference]: Without dead ends: 132 [2020-09-21 11:09:38,088 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 11:09:38,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-21 11:09:38,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-09-21 11:09:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-21 11:09:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-09-21 11:09:38,118 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-09-21 11:09:38,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:38,119 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-09-21 11:09:38,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-09-21 11:09:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:09:38,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:38,122 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] [2020-09-21 11:09:38,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:38,122 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:38,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:38,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2055351283, now seen corresponding path program 1 times [2020-09-21 11:09:38,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:38,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118611363] [2020-09-21 11:09:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,523 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:38,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,524 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:09:38,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-21 11:09:38,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:09:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:38,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:09:38,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,827 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:38,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:09:38,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:38,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:38,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:38,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:38,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:38,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:38,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:38,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:38,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:38,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:38,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:38,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:38,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:38,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:09:38,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:38,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:39,001 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:39,001 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:39,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:39,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:39,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:39,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:39,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:39,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:39,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:39,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:39,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:39,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:39,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:39,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:39,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:39,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:39,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:39,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:39,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:09:39,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:39,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:39,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:09:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:39,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:39,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:39,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:39,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:39,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:39,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:39,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:39,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:39,039 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 11:09:39,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118611363] [2020-09-21 11:09:39,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:39,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:39,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988315169] [2020-09-21 11:09:39,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:39,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:39,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:39,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:39,043 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 4 states. [2020-09-21 11:09:39,369 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:40,739 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2020-09-21 11:09:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:40,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-21 11:09:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:40,743 INFO L225 Difference]: With dead ends: 306 [2020-09-21 11:09:40,743 INFO L226 Difference]: Without dead ends: 224 [2020-09-21 11:09:40,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 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 11:09:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-21 11:09:40,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 178. [2020-09-21 11:09:40,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-21 11:09:40,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 213 transitions. [2020-09-21 11:09:40,832 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 213 transitions. Word has length 58 [2020-09-21 11:09:40,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:40,832 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 213 transitions. [2020-09-21 11:09:40,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:40,833 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 213 transitions. [2020-09-21 11:09:40,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:09:40,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:40,845 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 11:09:40,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:09:40,845 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:40,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:40,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1417899682, now seen corresponding path program 1 times [2020-09-21 11:09:40,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:40,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11621018] [2020-09-21 11:09:40,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:41,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:41,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:41,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:41,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:41,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:09:41,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:41,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-09-21 11:09:41,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:09:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:41,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:09:41,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:41,830 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:41,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:41,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:41,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:41,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:41,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:41,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:41,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:41,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-21 11:09:41,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:41,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:41,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,003 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:42,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:42,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:42,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:42,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:42,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:42,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:42,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:42,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:42,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,025 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:42,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:42,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:42,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:42,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:42,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:09:42,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:42,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:09:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:42,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:09:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,076 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,077 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:42,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:42,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:42,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:42,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:42,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:42,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:09:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:42,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:09:42,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:09:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:42,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:09:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:42,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:42,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:42,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:42,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:42,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:42,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:42,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:42,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:42,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:42,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:42,157 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 11:09:42,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11621018] [2020-09-21 11:09:42,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:42,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:09:42,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177620621] [2020-09-21 11:09:42,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:09:42,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:42,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:09:42,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:09:42,162 INFO L87 Difference]: Start difference. First operand 178 states and 213 transitions. Second operand 8 states. [2020-09-21 11:09:42,678 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:44,079 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:44,495 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:44,801 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:45,113 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:45,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:45,784 INFO L93 Difference]: Finished difference Result 549 states and 724 transitions. [2020-09-21 11:09:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:09:45,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:09:45,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:45,790 INFO L225 Difference]: With dead ends: 549 [2020-09-21 11:09:45,790 INFO L226 Difference]: Without dead ends: 395 [2020-09-21 11:09:45,792 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 11:09:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-21 11:09:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 331. [2020-09-21 11:09:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-21 11:09:45,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 407 transitions. [2020-09-21 11:09:45,865 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 407 transitions. Word has length 63 [2020-09-21 11:09:45,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:45,866 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 407 transitions. [2020-09-21 11:09:45,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:09:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 407 transitions. [2020-09-21 11:09:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:09:45,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:45,869 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 11:09:45,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:09:45,870 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:45,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:45,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1714463836, now seen corresponding path program 1 times [2020-09-21 11:09:45,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:45,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529038939] [2020-09-21 11:09:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:09:45,935 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:09:45,936 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:09:45,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:09:45,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:09:45 BoogieIcfgContainer [2020-09-21 11:09:45,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:09:45,969 INFO L168 Benchmark]: Toolchain (without parser) took 14130.16 ms. Allocated memory was 149.9 MB in the beginning and 437.8 MB in the end (delta: 287.8 MB). Free memory was 104.6 MB in the beginning and 307.7 MB in the end (delta: -203.1 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:45,970 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 149.9 MB. Free memory was 124.5 MB in the beginning and 124.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-21 11:09:45,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.94 ms. Allocated memory was 149.9 MB in the beginning and 205.5 MB in the end (delta: 55.6 MB). Free memory was 103.8 MB in the beginning and 175.5 MB in the end (delta: -71.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:45,972 INFO L168 Benchmark]: Boogie Preprocessor took 91.51 ms. Allocated memory is still 205.5 MB. Free memory was 175.5 MB in the beginning and 171.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:45,973 INFO L168 Benchmark]: RCFGBuilder took 1303.17 ms. Allocated memory was 205.5 MB in the beginning and 232.3 MB in the end (delta: 26.7 MB). Free memory was 171.8 MB in the beginning and 192.3 MB in the end (delta: -20.5 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:45,974 INFO L168 Benchmark]: TraceAbstraction took 11921.82 ms. Allocated memory was 232.3 MB in the beginning and 437.8 MB in the end (delta: 205.5 MB). Free memory was 190.7 MB in the beginning and 307.7 MB in the end (delta: -117.0 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:45,977 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 149.9 MB. Free memory was 124.5 MB in the beginning and 124.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.94 ms. Allocated memory was 149.9 MB in the beginning and 205.5 MB in the end (delta: 55.6 MB). Free memory was 103.8 MB in the beginning and 175.5 MB in the end (delta: -71.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.51 ms. Allocated memory is still 205.5 MB. Free memory was 175.5 MB in the beginning and 171.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1303.17 ms. Allocated memory was 205.5 MB in the beginning and 232.3 MB in the end (delta: 26.7 MB). Free memory was 171.8 MB in the beginning and 192.3 MB in the end (delta: -20.5 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11921.82 ms. Allocated memory was 232.3 MB in the beginning and 437.8 MB in the end (delta: 205.5 MB). Free memory was 190.7 MB in the beginning and 307.7 MB in the end (delta: -117.0 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 442 SDtfs, 502 SDslu, 246 SDs, 0 SdLazy, 1103 SolverSat, 320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 60918 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...