/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:28:57,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:28:57,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:28:57,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:28:57,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:28:57,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:28:57,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:28:57,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:28:57,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:28:57,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:28:57,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:28:57,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:28:57,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:28:57,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:28:57,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:28:57,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:28:57,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:28:57,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:28:57,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:28:57,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:28:57,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:28:57,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:28:57,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:28:57,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:28:57,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:28:57,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:28:57,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:28:57,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:28:57,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:28:57,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:28:57,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:28:57,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:28:57,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:28:57,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:28:57,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:28:57,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:28:57,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:28:57,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:28:57,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:28:57,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:28:57,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:28:57,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:28:57,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:28:57,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:28:57,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:28:57,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:28:57,256 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:28:57,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:28:57,257 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:28:57,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:28:57,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:28:57,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:28:57,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:28:57,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:28:57,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:28:57,258 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:28:57,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:28:57,259 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:28:57,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:28:57,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:28:57,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:28:57,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:28:57,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:28:57,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:28:57,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:28:57,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:28:57,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:28:57,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:28:57,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:28:57,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:28:57,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:28:57,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:28:57,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:28:57,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:28:57,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:28:57,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:28:57,781 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:28:57,782 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-09-24 22:28:57,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bfe843b6/0a67599c6cbf440baba823399149d8d4/FLAG8def7ea65 [2020-09-24 22:28:58,508 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:28:58,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-09-24 22:28:58,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bfe843b6/0a67599c6cbf440baba823399149d8d4/FLAG8def7ea65 [2020-09-24 22:28:58,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bfe843b6/0a67599c6cbf440baba823399149d8d4 [2020-09-24 22:28:58,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:28:58,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:28:58,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:58,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:28:58,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:28:58,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:58" (1/1) ... [2020-09-24 22:28:58,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:58, skipping insertion in model container [2020-09-24 22:28:58,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:58" (1/1) ... [2020-09-24 22:28:58,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:28:58,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:28:59,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:59,301 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:28:59,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:59,557 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:28:59,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59 WrapperNode [2020-09-24 22:28:59,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:59,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:28:59,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:28:59,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:28:59,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... [2020-09-24 22:28:59,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... [2020-09-24 22:28:59,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... [2020-09-24 22:28:59,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... [2020-09-24 22:28:59,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... [2020-09-24 22:28:59,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... [2020-09-24 22:28:59,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... [2020-09-24 22:28:59,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:28:59,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:28:59,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:28:59,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:28:59,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:28:59,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:28:59,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:28:59,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:28:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:28:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:28:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:28:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:28:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:28:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:28:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:28:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:28:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:28:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:28:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:28:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:28:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:28:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:28:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:28:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:28:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:28:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:28:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:28:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:28:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:28:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:28:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:28:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:28:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:28:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:28:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:28:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:28:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:28:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:28:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:28:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:28:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:28:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:28:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:28:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:28:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:28:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:28:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:28:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:28:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:28:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:28:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:28:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:28:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:28:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:28:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:28:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:28:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:28:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:28:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:28:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:28:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:28:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:28:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:28:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:28:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:28:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:28:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:28:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:28:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:28:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:28:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:28:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:28:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:28:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:28:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:28:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:28:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 22:28:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:28:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 22:28:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:28:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:28:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:29:00,994 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:29:00,995 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:29:01,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:01 BoogieIcfgContainer [2020-09-24 22:29:01,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:29:01,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:29:01,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:29:01,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:29:01,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:28:58" (1/3) ... [2020-09-24 22:29:01,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b35f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:01, skipping insertion in model container [2020-09-24 22:29:01,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:59" (2/3) ... [2020-09-24 22:29:01,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b35f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:01, skipping insertion in model container [2020-09-24 22:29:01,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:01" (3/3) ... [2020-09-24 22:29:01,012 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2020-09-24 22:29:01,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:29:01,036 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:29:01,059 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:29:01,092 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:29:01,092 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:29:01,092 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:29:01,092 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:29:01,092 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:29:01,093 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:29:01,093 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:29:01,093 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:29:01,122 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 22:29:01,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:29:01,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:01,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:01,144 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:01,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:01,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2092560802, now seen corresponding path program 1 times [2020-09-24 22:29:01,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:01,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676811987] [2020-09-24 22:29:01,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:01,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:01,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:02,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:05,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:05,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:29:05,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:05,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4402 [2020-09-24 22:29:05,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:29:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:05,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 22:29:06,390 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:06,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:06,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 22:29:06,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:06,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:06,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:06,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:06,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:06,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:06,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:06,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:29:06,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:06,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:06,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:06,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:06,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:29:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:06,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:06,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:06,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:06,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:06,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:29:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:06,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:06,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:06,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:29:06,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:06,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676811987] [2020-09-24 22:29:06,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:06,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:29:06,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876725821] [2020-09-24 22:29:06,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:29:06,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:06,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:29:06,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:06,905 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-24 22:29:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:08,797 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-09-24 22:29:08,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:29:08,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:29:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:08,821 INFO L225 Difference]: With dead ends: 477 [2020-09-24 22:29:08,822 INFO L226 Difference]: Without dead ends: 296 [2020-09-24 22:29:08,831 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 [2020-09-24 22:29:08,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-24 22:29:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-24 22:29:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 22:29:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-24 22:29:09,030 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 153 [2020-09-24 22:29:09,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:09,032 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-24 22:29:09,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:29:09,033 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-24 22:29:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:29:09,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:09,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:09,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:29:09,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:09,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1507063766, now seen corresponding path program 1 times [2020-09-24 22:29:09,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:09,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155820916] [2020-09-24 22:29:09,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:09,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:09,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:29:14,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:14,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 22:29:14,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:29:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:14,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:14,409 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:14,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:14,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 22:29:14,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:14,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:14,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:14,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:14,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:14,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:14,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:14,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:14,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:14,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:29:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:14,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:14,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:14,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:29:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:14,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:14,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:29:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:14,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:14,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:14,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:14,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:14,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:14,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155820916] [2020-09-24 22:29:14,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:14,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:29:14,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864448825] [2020-09-24 22:29:14,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:29:14,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:14,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:29:14,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:29:14,632 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 4 states. [2020-09-24 22:29:15,309 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:16,248 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2020-09-24 22:29:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:16,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:29:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:16,253 INFO L225 Difference]: With dead ends: 394 [2020-09-24 22:29:16,253 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 22:29:16,255 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 [2020-09-24 22:29:16,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 22:29:16,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-09-24 22:29:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-24 22:29:16,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-24 22:29:16,317 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 154 [2020-09-24 22:29:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:16,317 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-24 22:29:16,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-24 22:29:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 22:29:16,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:16,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:16,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:29:16,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:16,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:16,321 INFO L82 PathProgramCache]: Analyzing trace with hash 709687076, now seen corresponding path program 1 times [2020-09-24 22:29:16,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:16,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107416614] [2020-09-24 22:29:16,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:16,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:19,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:19,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 22:29:19,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:19,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3189 [2020-09-24 22:29:19,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 22:29:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 22:29:19,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:20,057 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:20,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:20,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-24 22:29:20,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:20,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:20,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:29:20,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:20,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:20,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:20,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:20,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:20,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:20,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:20,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:20,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 22:29:20,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:20,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:20,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:29:20,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:20,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:20,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:20,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:29:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:20,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:20,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:20,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 22:29:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:20,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:20,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:20,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:20,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:20,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:20,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:20,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:20,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:20,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107416614] [2020-09-24 22:29:20,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:20,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:29:20,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061566267] [2020-09-24 22:29:20,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:29:20,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:20,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:29:20,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:29:20,597 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-24 22:29:21,128 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:22,113 INFO L93 Difference]: Finished difference Result 414 states and 470 transitions. [2020-09-24 22:29:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:22,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 22:29:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:22,117 INFO L225 Difference]: With dead ends: 414 [2020-09-24 22:29:22,117 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 22:29:22,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:22,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 22:29:22,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-09-24 22:29:22,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-24 22:29:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2020-09-24 22:29:22,162 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 163 [2020-09-24 22:29:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:22,162 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2020-09-24 22:29:22,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:22,163 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2020-09-24 22:29:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 22:29:22,165 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:22,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:22,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:29:22,166 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:22,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:22,166 INFO L82 PathProgramCache]: Analyzing trace with hash -6881408, now seen corresponding path program 1 times [2020-09-24 22:29:22,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:22,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693681046] [2020-09-24 22:29:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:22,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 22:29:24,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2347 [2020-09-24 22:29:24,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:29:24,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:29:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-24 22:29:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:25,069 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:25,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-24 22:29:25,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 22:29:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:25,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:25,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:25,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:25,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:25,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:25,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:29:25,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:25,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:25,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:25,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:25,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 22:29:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:29:25,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:29:25,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:29:25,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:25,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:29:25,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:29:25,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:25,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:29:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:25,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:25,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:25,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:25,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 22:29:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:25,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:25,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:25,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 22:29:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:25,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:29:25,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:25,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:25,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:25,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:25,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 22:29:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:25,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:25,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:25,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:25,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:25,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:25,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:25,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:25,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:25,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:25,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693681046] [2020-09-24 22:29:25,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:25,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:29:25,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595962561] [2020-09-24 22:29:25,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:29:25,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:25,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:29:25,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:29:25,769 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 9 states. [2020-09-24 22:29:26,283 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:28,546 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:28,922 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:29,254 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:29,576 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:29,879 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:30,353 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:30,687 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:31,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:31,104 INFO L93 Difference]: Finished difference Result 592 states and 706 transitions. [2020-09-24 22:29:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:29:31,111 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-24 22:29:31,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:31,120 INFO L225 Difference]: With dead ends: 592 [2020-09-24 22:29:31,120 INFO L226 Difference]: Without dead ends: 457 [2020-09-24 22:29:31,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:29:31,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-24 22:29:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 377. [2020-09-24 22:29:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-24 22:29:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 420 transitions. [2020-09-24 22:29:31,182 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 420 transitions. Word has length 176 [2020-09-24 22:29:31,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:31,183 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 420 transitions. [2020-09-24 22:29:31,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:29:31,183 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 420 transitions. [2020-09-24 22:29:31,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:29:31,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:31,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:31,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:29:31,187 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:31,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:31,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1023073227, now seen corresponding path program 1 times [2020-09-24 22:29:31,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:31,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849376844] [2020-09-24 22:29:31,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:29:31,257 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:29:31,257 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:29:31,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:29:31,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:29:31 BoogieIcfgContainer [2020-09-24 22:29:31,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:29:31,295 INFO L168 Benchmark]: Toolchain (without parser) took 32504.06 ms. Allocated memory was 145.8 MB in the beginning and 633.3 MB in the end (delta: 487.6 MB). Free memory was 101.0 MB in the beginning and 437.3 MB in the end (delta: -336.3 MB). Peak memory consumption was 151.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:31,296 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:29:31,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.01 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 172.5 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:31,298 INFO L168 Benchmark]: Boogie Preprocessor took 95.47 ms. Allocated memory is still 202.9 MB. Free memory was 172.5 MB in the beginning and 168.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:31,299 INFO L168 Benchmark]: RCFGBuilder took 1347.75 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 177.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:31,300 INFO L168 Benchmark]: TraceAbstraction took 30289.24 ms. Allocated memory was 234.9 MB in the beginning and 633.3 MB in the end (delta: 398.5 MB). Free memory was 175.8 MB in the beginning and 437.3 MB in the end (delta: -261.5 MB). Peak memory consumption was 137.0 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:31,304 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.01 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 172.5 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.47 ms. Allocated memory is still 202.9 MB. Free memory was 172.5 MB in the beginning and 168.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1347.75 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 177.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30289.24 ms. Allocated memory was 234.9 MB in the beginning and 633.3 MB in the end (delta: 398.5 MB). Free memory was 175.8 MB in the beginning and 437.3 MB in the end (delta: -261.5 MB). Peak memory consumption was 137.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 580]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L83] int waterLevel = 1; [L84] int methaneLevelCritical = 0; [L341] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L567] int retValue_acc ; [L570] retValue_acc = 1 [L571] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L882] int splverifierCounter ; [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L886] int tmp___2 ; [L889] splverifierCounter = 0 [L891] COND TRUE 1 [L893] COND TRUE splverifierCounter < 4 [L899] tmp = __VERIFIER_nondet_int() [L901] COND TRUE \read(tmp) [L903] CALL waterRise() [L101] COND TRUE waterLevel < 2 [L102] waterLevel = waterLevel + 1 [L903] RET waterRise() [L909] tmp___0 = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp___0)) [L919] tmp___2 = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp___2) [L934] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L748] int tmp ; [L751] COND FALSE !(\read(pumpRunning)) [L766] CALL processEnvironment__wrappee__methaneQuery() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L766] RET processEnvironment__wrappee__methaneQuery() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L122] int retValue_acc ; [L125] retValue_acc = methaneLevelCritical [L126] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L154] int retValue_acc ; [L157] retValue_acc = waterLevel [L158] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L817] int retValue_acc ; [L820] retValue_acc = pumpRunning [L821] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L580] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 938 SDtfs, 1213 SDslu, 751 SDs, 0 SdLazy, 1847 SolverSat, 408 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=377occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 189 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 827 NumberOfCodeBlocks, 827 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 255842 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...