/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:18,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:18,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:18,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:18,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:18,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:18,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:18,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:18,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:18,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:18,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:18,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:18,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:18,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:18,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:18,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:18,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:18,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:18,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:18,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:18,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:18,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:18,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:18,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:18,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:18,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:18,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:18,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:18,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:18,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:18,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:18,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:18,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:18,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:18,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:18,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:18,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:18,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:18,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:18,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:18,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:18,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:09:18,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:18,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:18,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:18,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:18,374 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:18,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:18,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:18,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:18,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:18,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:18,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:18,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:18,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:18,377 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:18,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:18,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:18,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:18,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:18,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:18,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:18,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:18,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:18,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:18,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:18,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:18,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:18,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:18,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:18,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:18,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:09:18,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:18,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:18,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:18,853 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:18,854 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:18,855 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-21 11:09:18,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5f168578/fa18e42dd396496fbbc7afa57c3dbf99/FLAGa74407d68 [2020-09-21 11:09:19,571 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:19,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-21 11:09:19,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5f168578/fa18e42dd396496fbbc7afa57c3dbf99/FLAGa74407d68 [2020-09-21 11:09:19,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5f168578/fa18e42dd396496fbbc7afa57c3dbf99 [2020-09-21 11:09:19,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:19,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:19,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:19,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:19,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:19,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:19" (1/1) ... [2020-09-21 11:09:19,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dffe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:19, skipping insertion in model container [2020-09-21 11:09:19,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:19" (1/1) ... [2020-09-21 11:09:19,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:19,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:20,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:20,421 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:20,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:20,540 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:20,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20 WrapperNode [2020-09-21 11:09:20,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:20,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:20,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:20,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:20,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... [2020-09-21 11:09:20,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... [2020-09-21 11:09:20,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... [2020-09-21 11:09:20,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... [2020-09-21 11:09:20,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... [2020-09-21 11:09:20,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... [2020-09-21 11:09:20,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... [2020-09-21 11:09:20,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:20,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:20,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:20,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:20,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:09:20,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:20,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:09:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:21,778 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:21,779 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:21,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:21 BoogieIcfgContainer [2020-09-21 11:09:21,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:21,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:21,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:21,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:21,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:19" (1/3) ... [2020-09-21 11:09:21,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca023e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:21, skipping insertion in model container [2020-09-21 11:09:21,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:20" (2/3) ... [2020-09-21 11:09:21,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca023e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:21, skipping insertion in model container [2020-09-21 11:09:21,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:21" (3/3) ... [2020-09-21 11:09:21,795 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-09-21 11:09:21,808 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:21,819 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:21,842 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:21,874 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:21,874 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:21,874 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:21,874 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:21,874 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:21,875 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:21,875 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:21,875 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:21,902 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-09-21 11:09:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:21,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:21,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:09:21,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:21,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:21,921 INFO L82 PathProgramCache]: Analyzing trace with hash 512275600, now seen corresponding path program 1 times [2020-09-21 11:09:21,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:21,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808916657] [2020-09-21 11:09:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:22,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:09:22,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,705 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:22,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:22,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:22,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:22,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:22,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:22,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:22,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:22,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:22,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,832 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:22,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:22,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:22,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,841 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,842 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:22,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:22,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:09:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:22,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:22,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:22,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:22,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:22,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:22,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:22,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:22,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:22,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:22,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:22,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808916657] [2020-09-21 11:09:22,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:22,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:22,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833109712] [2020-09-21 11:09:22,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:22,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:22,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:22,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:22,931 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 3 states. [2020-09-21 11:09:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:23,899 INFO L93 Difference]: Finished difference Result 231 states and 307 transitions. [2020-09-21 11:09:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:23,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:23,920 INFO L225 Difference]: With dead ends: 231 [2020-09-21 11:09:23,920 INFO L226 Difference]: Without dead ends: 126 [2020-09-21 11:09:23,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:23,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-21 11:09:24,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 96. [2020-09-21 11:09:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:09:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-09-21 11:09:24,016 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52 [2020-09-21 11:09:24,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:24,017 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-09-21 11:09:24,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:24,017 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-09-21 11:09:24,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:24,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:24,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:09:24,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:24,022 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:24,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:24,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1858874248, now seen corresponding path program 1 times [2020-09-21 11:09:24,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:24,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114894794] [2020-09-21 11:09:24,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,090 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:24,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:09:24,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,438 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:24,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:24,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,483 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,483 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:24,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,488 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,488 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:24,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:24,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:24,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:24,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:24,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:24,515 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:24,515 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:24,516 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:24,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:24,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:24,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:24,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:24,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:24,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:24,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:24,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:24,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114894794] [2020-09-21 11:09:24,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:24,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:24,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406364413] [2020-09-21 11:09:24,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:24,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:24,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:24,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:24,530 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-09-21 11:09:24,947 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:25,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:25,512 INFO L93 Difference]: Finished difference Result 155 states and 188 transitions. [2020-09-21 11:09:25,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:25,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:25,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:25,515 INFO L225 Difference]: With dead ends: 155 [2020-09-21 11:09:25,515 INFO L226 Difference]: Without dead ends: 110 [2020-09-21 11:09:25,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-21 11:09:25,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-09-21 11:09:25,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-21 11:09:25,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-09-21 11:09:25,558 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53 [2020-09-21 11:09:25,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:25,559 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-09-21 11:09:25,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:25,559 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-09-21 11:09:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:09:25,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:25,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:09:25,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:25,572 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:25,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:25,573 INFO L82 PathProgramCache]: Analyzing trace with hash 865102310, now seen corresponding path program 1 times [2020-09-21 11:09:25,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:25,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093335758] [2020-09-21 11:09:25,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:26,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:09:26,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-21 11:09:26,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:09:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:26,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:09:26,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:26,397 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:26,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:26,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:09:26,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:26,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,562 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,562 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:26,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:09:26,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:26,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:26,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:26,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:26,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:26,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:26,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:26,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:26,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:26,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:26,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:26,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:26,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:26,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:26,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:26,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:26,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:26,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:09:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:26,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:26,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:26,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:09:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:26,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:26,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:26,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:26,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:26,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:26,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:09:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:26,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:26,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:26,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:26,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093335758] [2020-09-21 11:09:26,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:26,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:26,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912785713] [2020-09-21 11:09:26,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:26,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:26,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:26,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:26,625 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 4 states. [2020-09-21 11:09:26,977 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:27,962 INFO L93 Difference]: Finished difference Result 244 states and 299 transitions. [2020-09-21 11:09:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:27,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:09:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:27,967 INFO L225 Difference]: With dead ends: 244 [2020-09-21 11:09:27,967 INFO L226 Difference]: Without dead ends: 181 [2020-09-21 11:09:27,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-21 11:09:28,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 138. [2020-09-21 11:09:28,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-21 11:09:28,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2020-09-21 11:09:28,012 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 57 [2020-09-21 11:09:28,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:28,012 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2020-09-21 11:09:28,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:28,012 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2020-09-21 11:09:28,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 11:09:28,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:28,014 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] [2020-09-21 11:09:28,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:09:28,014 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:28,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash 27342424, now seen corresponding path program 1 times [2020-09-21 11:09:28,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:28,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318069511] [2020-09-21 11:09:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:09:28,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-09-21 11:09:28,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:09:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 11:09:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,771 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:28,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,832 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:28,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:09:28,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:28,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,868 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,869 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:28,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:28,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:28,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:28,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:28,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:28,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:09:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:28,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:09:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:28,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:28,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 11:09:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:28,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:28,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:09:28,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:28,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:28,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-21 11:09:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:28,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:28,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:28,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318069511] [2020-09-21 11:09:28,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:28,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:09:28,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268160180] [2020-09-21 11:09:28,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:09:28,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:28,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:09:28,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:09:28,937 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 7 states. [2020-09-21 11:09:29,336 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:30,485 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:30,825 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:31,119 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:31,421 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:31,738 INFO L93 Difference]: Finished difference Result 380 states and 478 transitions. [2020-09-21 11:09:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:09:31,739 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-09-21 11:09:31,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:31,742 INFO L225 Difference]: With dead ends: 380 [2020-09-21 11:09:31,743 INFO L226 Difference]: Without dead ends: 266 [2020-09-21 11:09:31,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:09:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-21 11:09:31,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 247. [2020-09-21 11:09:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-21 11:09:31,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 297 transitions. [2020-09-21 11:09:31,807 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 297 transitions. Word has length 60 [2020-09-21 11:09:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:31,807 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 297 transitions. [2020-09-21 11:09:31,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:09:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 297 transitions. [2020-09-21 11:09:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 11:09:31,809 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:31,810 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] [2020-09-21 11:09:31,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:09:31,810 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:31,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:31,810 INFO L82 PathProgramCache]: Analyzing trace with hash -475254926, now seen corresponding path program 1 times [2020-09-21 11:09:31,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:31,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179843957] [2020-09-21 11:09:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 11:09:32,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-21 11:09:32,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:09:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:32,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 11:09:32,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,339 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:32,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,406 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,406 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:32,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:09:32,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:32,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:32,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:32,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:32,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:32,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:32,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,459 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:32,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:32,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:32,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:32,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:09:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:32,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,479 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:32,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:32,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:09:32,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:32,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:32,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:32,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:09:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:32,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:32,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:09:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:32,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:32,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:32,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:32,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:32,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:32,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:32,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:32,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:32,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:32,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:32,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:32,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179843957] [2020-09-21 11:09:32,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:32,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:09:32,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425040467] [2020-09-21 11:09:32,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:09:32,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:32,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:09:32,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:32,508 INFO L87 Difference]: Start difference. First operand 247 states and 297 transitions. Second operand 5 states. [2020-09-21 11:09:32,863 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:33,493 INFO L93 Difference]: Finished difference Result 410 states and 508 transitions. [2020-09-21 11:09:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:09:33,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-09-21 11:09:33,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:33,503 INFO L225 Difference]: With dead ends: 410 [2020-09-21 11:09:33,504 INFO L226 Difference]: Without dead ends: 226 [2020-09-21 11:09:33,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:09:33,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-21 11:09:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 213. [2020-09-21 11:09:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-21 11:09:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 246 transitions. [2020-09-21 11:09:33,553 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 246 transitions. Word has length 64 [2020-09-21 11:09:33,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:33,553 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 246 transitions. [2020-09-21 11:09:33,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:09:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 246 transitions. [2020-09-21 11:09:33,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 11:09:33,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:33,555 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] [2020-09-21 11:09:33,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:09:33,556 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:33,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:33,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2049443282, now seen corresponding path program 1 times [2020-09-21 11:09:33,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:33,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609062158] [2020-09-21 11:09:33,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:09:33,619 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:09:33,620 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:09:33,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:09:33,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:09:33 BoogieIcfgContainer [2020-09-21 11:09:33,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:09:33,653 INFO L168 Benchmark]: Toolchain (without parser) took 13789.90 ms. Allocated memory was 140.5 MB in the beginning and 453.5 MB in the end (delta: 313.0 MB). Free memory was 100.9 MB in the beginning and 337.7 MB in the end (delta: -236.7 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:33,654 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:09:33,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.44 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 173.2 MB in the end (delta: -73.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:33,656 INFO L168 Benchmark]: Boogie Preprocessor took 96.85 ms. Allocated memory is still 204.5 MB. Free memory was 173.2 MB in the beginning and 169.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:33,657 INFO L168 Benchmark]: RCFGBuilder took 1144.29 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.7 MB in the beginning and 200.5 MB in the end (delta: -31.9 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:33,658 INFO L168 Benchmark]: TraceAbstraction took 11864.79 ms. Allocated memory was 236.5 MB in the beginning and 453.5 MB in the end (delta: 217.1 MB). Free memory was 200.5 MB in the beginning and 337.7 MB in the end (delta: -137.1 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:33,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.44 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 173.2 MB in the end (delta: -73.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.85 ms. Allocated memory is still 204.5 MB. Free memory was 173.2 MB in the beginning and 169.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1144.29 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.7 MB in the beginning and 200.5 MB in the end (delta: -31.9 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11864.79 ms. Allocated memory was 236.5 MB in the beginning and 453.5 MB in the end (delta: 217.1 MB). Free memory was 200.5 MB in the beginning and 337.7 MB in the end (delta: -137.1 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 203 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 414 SDtfs, 513 SDslu, 220 SDs, 0 SdLazy, 853 SolverSat, 279 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 128 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 77364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...