/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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:19,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:19,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:19,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:19,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:19,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:19,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:19,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:19,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:19,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:19,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:19,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:19,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:19,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:19,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:19,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:19,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:19,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:19,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:19,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:19,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:19,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:19,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:19,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:19,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:19,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:19,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:19,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:19,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:19,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:19,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:19,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:19,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:19,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:19,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:19,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:19,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:19,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:19,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:19,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:19,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:19,519 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 15:46:19,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:19,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:19,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:19,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:19,547 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:19,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:19,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:19,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:19,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:19,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:19,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:19,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:19,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:19,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:19,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:19,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:19,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:19,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:19,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:19,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:19,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:19,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:19,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:19,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:19,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:19,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:19,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:19,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:19,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:19,552 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 15:46:20,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:20,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:20,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:20,053 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:20,053 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:20,055 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-24 15:46:20,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/677ea0e34/897f3a83e4c94268b0614bc6e895c1a9/FLAG02befa2f5 [2020-09-24 15:46:20,798 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:20,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-24 15:46:20,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/677ea0e34/897f3a83e4c94268b0614bc6e895c1a9/FLAG02befa2f5 [2020-09-24 15:46:21,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/677ea0e34/897f3a83e4c94268b0614bc6e895c1a9 [2020-09-24 15:46:21,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:21,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:21,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:21,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:21,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:21,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1e51c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21, skipping insertion in model container [2020-09-24 15:46:21,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:21,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:21,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:21,576 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:21,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:21,712 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:21,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21 WrapperNode [2020-09-24 15:46:21,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:21,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:21,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:21,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:21,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:21,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:21,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:21,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:21,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (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 15:46:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:46:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:46:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:46:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:46:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:23,073 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:23,073 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:23,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:23 BoogieIcfgContainer [2020-09-24 15:46:23,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:23,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:23,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:23,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:23,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:21" (1/3) ... [2020-09-24 15:46:23,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c495fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:23, skipping insertion in model container [2020-09-24 15:46:23,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21" (2/3) ... [2020-09-24 15:46:23,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c495fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:23, skipping insertion in model container [2020-09-24 15:46:23,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:23" (3/3) ... [2020-09-24 15:46:23,096 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-09-24 15:46:23,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:23,123 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:23,145 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:23,180 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:23,181 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:23,181 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:23,181 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:23,181 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:23,181 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:23,181 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:23,182 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:23,206 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-24 15:46:23,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:23,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:23,225 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 15:46:23,225 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:23,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:23,233 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-09-24 15:46:23,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:23,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462069421] [2020-09-24 15:46:23,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:23,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:23,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:23,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:23,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:23,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:23,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:46:23,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:24,057 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:24,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:24,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:24,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:24,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:24,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:24,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:24,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:24,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:24,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:24,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:24,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:24,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:24,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:24,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:24,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:24,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:24,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:24,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:24,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:24,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:24,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:24,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:24,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:24,337 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 15:46:24,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462069421] [2020-09-24 15:46:24,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:24,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:24,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488918489] [2020-09-24 15:46:24,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:24,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:24,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:24,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:24,378 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-24 15:46:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:25,634 INFO L93 Difference]: Finished difference Result 427 states and 514 transitions. [2020-09-24 15:46:25,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:25,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:25,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:25,672 INFO L225 Difference]: With dead ends: 427 [2020-09-24 15:46:25,672 INFO L226 Difference]: Without dead ends: 271 [2020-09-24 15:46:25,681 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 15:46:25,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-24 15:46:25,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-09-24 15:46:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-24 15:46:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions. [2020-09-24 15:46:25,809 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153 [2020-09-24 15:46:25,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:25,811 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 250 transitions. [2020-09-24 15:46:25,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions. [2020-09-24 15:46:25,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:25,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:25,817 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 15:46:25,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:25,818 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:25,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1482403721, now seen corresponding path program 1 times [2020-09-24 15:46:25,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:25,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975213730] [2020-09-24 15:46:25,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,898 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,898 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:25,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:46:25,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:26,231 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:26,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:26,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:26,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:26,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:26,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:26,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:26,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:26,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:26,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:26,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:26,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:26,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:26,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:26,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:26,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:26,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:26,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:26,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:26,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:26,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:26,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:26,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:26,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:26,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:26,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:26,394 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 15:46:26,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975213730] [2020-09-24 15:46:26,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:26,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:26,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3257082] [2020-09-24 15:46:26,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:26,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:26,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:26,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:26,399 INFO L87 Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 4 states. [2020-09-24 15:46:27,053 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:27,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:27,868 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2020-09-24 15:46:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:27,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:27,873 INFO L225 Difference]: With dead ends: 338 [2020-09-24 15:46:27,873 INFO L226 Difference]: Without dead ends: 254 [2020-09-24 15:46:27,875 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 15:46:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-24 15:46:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-09-24 15:46:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-24 15:46:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2020-09-24 15:46:27,915 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 154 [2020-09-24 15:46:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:27,916 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 237 transitions. [2020-09-24 15:46:27,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 237 transitions. [2020-09-24 15:46:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 15:46:27,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:27,920 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 15:46:27,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:27,920 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:27,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:27,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1724777335, now seen corresponding path program 1 times [2020-09-24 15:46:27,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:27,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966573398] [2020-09-24 15:46:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:28,009 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 15:46:28,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:46:28,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:46:28,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:46:28,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:46:28,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:28,368 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:28,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:28,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:28,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:46:28,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 31 [2020-09-24 15:46:28,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:28,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:28,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:28,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:28,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:28,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:28,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:28,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:28,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:28,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:28,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:28,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:28,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:46:28,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:28,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:28,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:28,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:28,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:28,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:28,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 15:46:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:28,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:28,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:28,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:28,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:28,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:28,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:28,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:28,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:28,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:28,585 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 15:46:28,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966573398] [2020-09-24 15:46:28,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:28,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:28,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150415595] [2020-09-24 15:46:28,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:28,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:28,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:28,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:28,588 INFO L87 Difference]: Start difference. First operand 220 states and 237 transitions. Second operand 4 states. [2020-09-24 15:46:29,181 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:30,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:30,763 INFO L93 Difference]: Finished difference Result 484 states and 556 transitions. [2020-09-24 15:46:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:30,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 15:46:30,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:30,769 INFO L225 Difference]: With dead ends: 484 [2020-09-24 15:46:30,769 INFO L226 Difference]: Without dead ends: 374 [2020-09-24 15:46:30,771 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 15:46:30,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-09-24 15:46:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 324. [2020-09-24 15:46:30,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-09-24 15:46:30,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 359 transitions. [2020-09-24 15:46:30,833 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 359 transitions. Word has length 163 [2020-09-24 15:46:30,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:30,834 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 359 transitions. [2020-09-24 15:46:30,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:30,834 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 359 transitions. [2020-09-24 15:46:30,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 15:46:30,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:30,838 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 15:46:30,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:30,839 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:30,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:30,839 INFO L82 PathProgramCache]: Analyzing trace with hash 775852866, now seen corresponding path program 1 times [2020-09-24 15:46:30,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:30,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396939750] [2020-09-24 15:46:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:30,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:30,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:30,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:30,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:30,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 15:46:30,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:46:30,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:46:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 15:46:30,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:31,351 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:31,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:31,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:31,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:46:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:31,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:31,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:31,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:31,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:31,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,465 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,465 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:31,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:31,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:31,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:31,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:31,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:31,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:31,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:31,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:31,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:31,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:46:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:46:31,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:31,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:31,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 15:46:31,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:31,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:46:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:31,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:31,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:31,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:31,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:31,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:46:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:31,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:31,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:31,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:31,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:46:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:31,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:46:31,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:31,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 15:46:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:31,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:31,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:31,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:31,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:31,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:31,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:31,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:31,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:31,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:31,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:31,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:31,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:31,623 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 15:46:31,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396939750] [2020-09-24 15:46:31,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:31,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:46:31,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707979556] [2020-09-24 15:46:31,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:46:31,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:31,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:46:31,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:46:31,626 INFO L87 Difference]: Start difference. First operand 324 states and 359 transitions. Second operand 9 states. [2020-09-24 15:46:32,156 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:33,958 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:34,352 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:34,694 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:35,022 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:35,332 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:35,647 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:35,964 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:36,837 INFO L93 Difference]: Finished difference Result 891 states and 1108 transitions. [2020-09-24 15:46:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:46:36,838 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-24 15:46:36,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:36,845 INFO L225 Difference]: With dead ends: 891 [2020-09-24 15:46:36,845 INFO L226 Difference]: Without dead ends: 677 [2020-09-24 15:46:36,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:46:36,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-09-24 15:46:36,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 531. [2020-09-24 15:46:36,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-24 15:46:36,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 609 transitions. [2020-09-24 15:46:36,950 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 609 transitions. Word has length 171 [2020-09-24 15:46:36,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:36,951 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 609 transitions. [2020-09-24 15:46:36,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:46:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 609 transitions. [2020-09-24 15:46:36,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 15:46:36,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:36,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:36,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:36,956 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:36,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:36,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1861287888, now seen corresponding path program 1 times [2020-09-24 15:46:36,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:36,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958260949] [2020-09-24 15:46:36,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:37,055 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:37,055 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:37,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:37,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:37 BoogieIcfgContainer [2020-09-24 15:46:37,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:37,087 INFO L168 Benchmark]: Toolchain (without parser) took 16074.28 ms. Allocated memory was 146.8 MB in the beginning and 530.6 MB in the end (delta: 383.8 MB). Free memory was 101.7 MB in the beginning and 285.6 MB in the end (delta: -183.9 MB). Peak memory consumption was 199.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:37,088 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:46:37,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.06 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 174.3 MB in the end (delta: -73.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:37,090 INFO L168 Benchmark]: Boogie Preprocessor took 102.97 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 170.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:37,091 INFO L168 Benchmark]: RCFGBuilder took 1267.88 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.1 MB in the beginning and 184.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:37,092 INFO L168 Benchmark]: TraceAbstraction took 13999.46 ms. Allocated memory was 237.0 MB in the beginning and 530.6 MB in the end (delta: 293.6 MB). Free memory was 182.8 MB in the beginning and 285.6 MB in the end (delta: -102.8 MB). Peak memory consumption was 190.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:37,096 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.06 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 174.3 MB in the end (delta: -73.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.97 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 170.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1267.88 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.1 MB in the beginning and 184.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13999.46 ms. Allocated memory was 237.0 MB in the beginning and 530.6 MB in the end (delta: 293.6 MB). Free memory was 182.8 MB in the beginning and 285.6 MB in the end (delta: -102.8 MB). Peak memory consumption was 190.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 596 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 881 SDtfs, 896 SDslu, 777 SDs, 0 SdLazy, 1822 SolverSat, 317 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=531occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 271 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 251520 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...