/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:33,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:33,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:33,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:33,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:33,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:33,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:33,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:33,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:33,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:33,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:33,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:33,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:33,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:33,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:33,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:33,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:33,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:33,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:33,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:33,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:33,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:33,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:33,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:33,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:33,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:33,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:33,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:33,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:33,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:33,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:33,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:33,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:33,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:33,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:33,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:33,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:33,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:33,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:33,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:33,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:33,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:46:33,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:33,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:33,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:33,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:33,252 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:33,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:33,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:33,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:33,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:33,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:33,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:33,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:33,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:33,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:33,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:33,256 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:33,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:33,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:33,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:33,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:33,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:33,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:33,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:33,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:33,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:33,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:33,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:33,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:33,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:33,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 15:46:33,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:33,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:33,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:33,731 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:33,732 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:33,733 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-24 15:46:33,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fcb99a9f/74b3bc2dd69c42b8977933e19173abb6/FLAG0b06eb038 [2020-09-24 15:46:34,401 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:34,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-24 15:46:34,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fcb99a9f/74b3bc2dd69c42b8977933e19173abb6/FLAG0b06eb038 [2020-09-24 15:46:34,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fcb99a9f/74b3bc2dd69c42b8977933e19173abb6 [2020-09-24 15:46:34,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:34,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:34,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:34,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:34,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:34,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:34" (1/1) ... [2020-09-24 15:46:34,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:34, skipping insertion in model container [2020-09-24 15:46:34,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:34" (1/1) ... [2020-09-24 15:46:34,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:34,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:35,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:35,239 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:35,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:35,355 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:35,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35 WrapperNode [2020-09-24 15:46:35,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:35,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:35,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:35,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:35,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... [2020-09-24 15:46:35,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... [2020-09-24 15:46:35,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... [2020-09-24 15:46:35,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... [2020-09-24 15:46:35,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... [2020-09-24 15:46:35,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... [2020-09-24 15:46:35,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... [2020-09-24 15:46:35,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:35,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:35,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:35,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:35,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:35,534 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:35,535 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 15:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 15:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:36,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:36,717 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:36,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:36 BoogieIcfgContainer [2020-09-24 15:46:36,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:36,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:36,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:36,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:36,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:34" (1/3) ... [2020-09-24 15:46:36,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3275fd42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:36, skipping insertion in model container [2020-09-24 15:46:36,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:35" (2/3) ... [2020-09-24 15:46:36,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3275fd42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:36, skipping insertion in model container [2020-09-24 15:46:36,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:36" (3/3) ... [2020-09-24 15:46:36,733 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-09-24 15:46:36,745 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:36,756 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:36,778 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:36,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:36,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:36,808 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:36,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:36,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:36,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:36,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:36,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-09-24 15:46:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:36,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:36,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:36,858 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:36,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:36,866 INFO L82 PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times [2020-09-24 15:46:36,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:36,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042441178] [2020-09-24 15:46:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:37,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:46:37,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:37,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:37,729 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:37,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:37,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:37,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:37,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:37,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:37,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:37,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:37,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:37,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,902 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:37,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:37,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:37,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:37,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:37,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042441178] [2020-09-24 15:46:37,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:37,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:37,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819170503] [2020-09-24 15:46:37,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:37,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:37,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:37,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:37,986 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2020-09-24 15:46:39,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:39,133 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2020-09-24 15:46:39,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:39,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:39,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:39,157 INFO L225 Difference]: With dead ends: 385 [2020-09-24 15:46:39,158 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 15:46:39,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:39,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 15:46:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 210. [2020-09-24 15:46:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-24 15:46:39,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2020-09-24 15:46:39,272 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 153 [2020-09-24 15:46:39,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:39,274 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2020-09-24 15:46:39,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:39,274 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2020-09-24 15:46:39,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:39,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:39,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:39,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:39,280 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:39,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:39,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1859532277, now seen corresponding path program 1 times [2020-09-24 15:46:39,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:39,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322392265] [2020-09-24 15:46:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:39,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:46:39,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,730 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:39,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:39,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:39,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:39,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:39,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:39,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:39,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:39,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:39,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,858 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:39,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:39,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,869 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:39,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:46:39,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:39,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322392265] [2020-09-24 15:46:39,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:39,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:39,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250283115] [2020-09-24 15:46:39,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:39,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:39,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:39,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:39,991 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand 4 states. [2020-09-24 15:46:40,649 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:41,317 INFO L93 Difference]: Finished difference Result 293 states and 326 transitions. [2020-09-24 15:46:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:41,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:41,328 INFO L225 Difference]: With dead ends: 293 [2020-09-24 15:46:41,328 INFO L226 Difference]: Without dead ends: 232 [2020-09-24 15:46:41,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:41,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-09-24 15:46:41,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2020-09-24 15:46:41,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-24 15:46:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2020-09-24 15:46:41,373 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 154 [2020-09-24 15:46:41,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:41,374 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2020-09-24 15:46:41,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:41,374 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2020-09-24 15:46:41,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 15:46:41,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:41,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:41,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:41,378 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:41,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:41,379 INFO L82 PathProgramCache]: Analyzing trace with hash 97616053, now seen corresponding path program 1 times [2020-09-24 15:46:41,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:41,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082630887] [2020-09-24 15:46:41,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:41,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,469 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 15:46:41,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:46:41,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:46:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:46:41,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:46:41,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:41,789 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:41,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,836 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:41,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:41,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:46:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:41,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:41,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:41,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:41,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:41,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:41,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:41,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:41,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:41,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:41,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:41,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:41,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:41,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:41,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:41,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:41,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:41,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:41,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:41,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:41,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:41,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:41,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:41,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:41,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:41,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:41,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:41,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:41,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 15:46:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:41,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:41,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:41,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:41,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:42,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:42,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082630887] [2020-09-24 15:46:42,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:42,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:42,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562881391] [2020-09-24 15:46:42,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:42,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:42,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:42,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:42,040 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 4 states. [2020-09-24 15:46:42,581 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:43,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:43,748 INFO L93 Difference]: Finished difference Result 420 states and 475 transitions. [2020-09-24 15:46:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:43,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 15:46:43,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:43,757 INFO L225 Difference]: With dead ends: 420 [2020-09-24 15:46:43,758 INFO L226 Difference]: Without dead ends: 330 [2020-09-24 15:46:43,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:43,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-24 15:46:43,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 278. [2020-09-24 15:46:43,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 15:46:43,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-24 15:46:43,832 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 163 [2020-09-24 15:46:43,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:43,833 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-24 15:46:43,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:43,833 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-24 15:46:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:46:43,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:43,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:43,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:43,837 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:43,838 INFO L82 PathProgramCache]: Analyzing trace with hash -2677620, now seen corresponding path program 1 times [2020-09-24 15:46:43,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:43,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592614763] [2020-09-24 15:46:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:43,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:43,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:43,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:43,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:43,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:46:43,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:46:43,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:46:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 15:46:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,267 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:44,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:44,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:46:44,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:44,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:44,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:44,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:44,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:44,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:44,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:44,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:44,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:44,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:44,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:46:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:44,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:44,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:46:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:44,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:46:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:44,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:44,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:44,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:44,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:46:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:44,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:44,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:44,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:44,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:44,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:44,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:44,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:44,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:44,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:44,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:44,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:44,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:44,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:44,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592614763] [2020-09-24 15:46:44,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:44,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:46:44,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553995055] [2020-09-24 15:46:44,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:46:44,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:44,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:46:44,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:46:44,604 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 8 states. [2020-09-24 15:46:45,277 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:46,780 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:47,119 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:47,450 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:47,751 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:48,068 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:48,436 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:48,735 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:49,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:49,181 INFO L93 Difference]: Finished difference Result 641 states and 748 transitions. [2020-09-24 15:46:49,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:46:49,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-24 15:46:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:49,187 INFO L225 Difference]: With dead ends: 641 [2020-09-24 15:46:49,187 INFO L226 Difference]: Without dead ends: 473 [2020-09-24 15:46:49,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:46:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-24 15:46:49,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 435. [2020-09-24 15:46:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-09-24 15:46:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 487 transitions. [2020-09-24 15:46:49,255 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 487 transitions. Word has length 166 [2020-09-24 15:46:49,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:49,256 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 487 transitions. [2020-09-24 15:46:49,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:46:49,256 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 487 transitions. [2020-09-24 15:46:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 15:46:49,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:49,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:49,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:49,261 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:49,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:49,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times [2020-09-24 15:46:49,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:49,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227670502] [2020-09-24 15:46:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:49,355 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:49,355 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:49,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:49,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:49 BoogieIcfgContainer [2020-09-24 15:46:49,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:49,395 INFO L168 Benchmark]: Toolchain (without parser) took 14736.84 ms. Allocated memory was 147.3 MB in the beginning and 492.8 MB in the end (delta: 345.5 MB). Free memory was 101.3 MB in the beginning and 247.8 MB in the end (delta: -146.5 MB). Peak memory consumption was 199.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:49,396 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:46:49,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.76 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 174.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:49,398 INFO L168 Benchmark]: Boogie Preprocessor took 98.04 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 170.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:49,399 INFO L168 Benchmark]: RCFGBuilder took 1269.37 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 170.2 MB in the beginning and 182.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:49,400 INFO L168 Benchmark]: TraceAbstraction took 12667.77 ms. Allocated memory was 235.4 MB in the beginning and 492.8 MB in the end (delta: 257.4 MB). Free memory was 180.7 MB in the beginning and 247.8 MB in the end (delta: -67.0 MB). Peak memory consumption was 190.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:49,404 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.76 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 174.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.04 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 170.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1269.37 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 170.2 MB in the beginning and 182.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12667.77 ms. Allocated memory was 235.4 MB in the beginning and 492.8 MB in the end (delta: 257.4 MB). Free memory was 180.7 MB in the beginning and 247.8 MB in the end (delta: -67.0 MB). Peak memory consumption was 190.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; [L159] int retValue_acc ; [L160] int tmp ; [L164] FCALL select_helpers() [L165] FCALL select_features() [L166] CALL, EXPR valid_product() [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); [L166] RET, EXPR valid_product() [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) [L170] FCALL setup() [L171] CALL runTest() [L150] CALL test() [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 [L738] COND TRUE 1 [L740] COND TRUE splverifierCounter < 4 [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) [L750] CALL waterRise() [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 [L750] RET waterRise() [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) [L783] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] FCALL processEnvironment() [L610] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L799] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 781 SDtfs, 665 SDslu, 753 SDs, 0 SdLazy, 1463 SolverSat, 214 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=435occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 161 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 248020 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...