/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:18:38,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:18:38,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:18:38,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:18:38,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:18:38,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:18:38,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:18:38,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:18:38,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:18:38,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:18:38,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:18:38,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:18:38,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:18:38,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:18:38,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:18:38,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:18:38,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:18:38,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:18:38,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:18:38,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:18:38,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:18:38,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:18:38,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:18:38,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:18:39,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:18:39,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:18:39,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:18:39,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:18:39,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:18:39,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:18:39,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:18:39,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:18:39,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:18:39,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:18:39,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:18:39,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:18:39,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:18:39,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:18:39,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:18:39,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:18:39,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:18:39,034 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 [2020-09-25 14:18:39,082 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:18:39,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:18:39,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:18:39,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:18:39,084 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:18:39,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:18:39,085 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:18:39,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:18:39,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:18:39,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:18:39,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:18:39,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:18:39,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:18:39,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:18:39,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:18:39,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:18:39,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:18:39,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:18:39,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:18:39,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:18:39,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:18:39,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:18:39,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:18:39,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:18:39,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:18:39,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:18:39,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:18:39,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:18:39,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:18:39,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:18:39,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:18:39,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:18:39,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:18:39,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:18:39,572 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:18:39,573 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 14:18:39,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f51ca049/a3b247596dd04b709d8a373dc55f315b/FLAG8da29659c [2020-09-25 14:18:40,245 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:18:40,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 14:18:40,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f51ca049/a3b247596dd04b709d8a373dc55f315b/FLAG8da29659c [2020-09-25 14:18:40,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f51ca049/a3b247596dd04b709d8a373dc55f315b [2020-09-25 14:18:40,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:18:40,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:18:40,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:18:40,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:18:40,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:18:40,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:40" (1/1) ... [2020-09-25 14:18:40,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:40, skipping insertion in model container [2020-09-25 14:18:40,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:40" (1/1) ... [2020-09-25 14:18:40,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:18:40,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:18:41,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:18:41,058 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:18:41,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:18:41,320 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:18:41,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41 WrapperNode [2020-09-25 14:18:41,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:18:41,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:18:41,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:18:41,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:18:41,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ... [2020-09-25 14:18:41,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ... [2020-09-25 14:18:41,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ... [2020-09-25 14:18:41,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ... [2020-09-25 14:18:41,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ... [2020-09-25 14:18:41,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ... [2020-09-25 14:18:41,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (1/1) ... [2020-09-25 14:18:41,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:18:41,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:18:41,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:18:41,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:18:41,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (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 [2020-09-25 14:18:41,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:18:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:18:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:18:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:18:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:18:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:18:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:18:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:18:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:18:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:18:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:18:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:18:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:18:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:18:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:18:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:18:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:18:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:18:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:18:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:18:41,509 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:18:41,510 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:18:41,510 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:18:41,510 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:18:41,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:18:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:18:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:18:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:18:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:18:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:18:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:18:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:18:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:18:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:18:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:18:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:18:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:18:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:18:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:18:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:18:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:18:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:18:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:18:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:18:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:18:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:18:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:18:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:18:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:18:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:18:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:18:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:18:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:18:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:18:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:18:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:18:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:18:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:18:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:18:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:18:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:18:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:18:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:18:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:18:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:18:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:18:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:18:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:18:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:18:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:18:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:18:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:18:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:18:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:18:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:18:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:18:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:18:42,679 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:18:42,680 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:18:42,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:42 BoogieIcfgContainer [2020-09-25 14:18:42,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:18:42,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:18:42,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:18:42,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:18:42,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:40" (1/3) ... [2020-09-25 14:18:42,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c568b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:42, skipping insertion in model container [2020-09-25 14:18:42,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:41" (2/3) ... [2020-09-25 14:18:42,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c568b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:42, skipping insertion in model container [2020-09-25 14:18:42,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:42" (3/3) ... [2020-09-25 14:18:42,698 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-09-25 14:18:42,709 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:18:42,722 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:18:42,745 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:18:42,780 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:18:42,780 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:18:42,781 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:18:42,781 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:18:42,781 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:18:42,781 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:18:42,781 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:18:42,781 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:18:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 14:18:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:18:42,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:42,838 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] [2020-09-25 14:18:42,838 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:42,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:42,846 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times [2020-09-25 14:18:42,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:42,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19791309] [2020-09-25 14:18:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:43,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:43,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:45,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:48,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:48,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:18:48,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:18:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-09-25 14:18:48,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:48,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:48,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:18:48,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:18:48,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:18:48,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 14:18:48,910 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:18:48,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:18:49,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 14:18:49,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:18:49,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:49,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:18:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:49,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:18:49,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:49,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:49,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:18:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:49,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:18:49,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:49,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:49,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:18:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:49,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:18:49,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:49,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:49,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:49,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:49,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:18:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:49,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:18:49,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:49,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:49,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:18:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:49,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:49,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:49,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:49,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:49,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:18:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:49,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:49,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:49,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:49,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:18:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:49,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:49,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:49,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:49,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:49,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:49,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:49,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:49,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:49,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:18:49,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19791309] [2020-09-25 14:18:49,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:49,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:18:49,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337090529] [2020-09-25 14:18:49,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:18:49,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:49,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:18:49,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:18:49,563 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-09-25 14:18:50,484 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:52,698 INFO L93 Difference]: Finished difference Result 623 states and 756 transitions. [2020-09-25 14:18:52,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:18:52,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 14:18:52,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:52,724 INFO L225 Difference]: With dead ends: 623 [2020-09-25 14:18:52,724 INFO L226 Difference]: Without dead ends: 438 [2020-09-25 14:18:52,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:18:52,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-09-25 14:18:52,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 370. [2020-09-25 14:18:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-25 14:18:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 411 transitions. [2020-09-25 14:18:52,917 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 411 transitions. Word has length 153 [2020-09-25 14:18:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:52,918 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 411 transitions. [2020-09-25 14:18:52,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:18:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 411 transitions. [2020-09-25 14:18:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 14:18:52,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:52,925 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] [2020-09-25 14:18:52,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:18:52,926 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:52,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:52,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1437801491, now seen corresponding path program 1 times [2020-09-25 14:18:52,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:52,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489432778] [2020-09-25 14:18:52,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:53,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:53,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:56,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:56,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:18:56,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:18:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3485 [2020-09-25 14:18:56,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:56,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:18:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:18:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 14:18:56,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:56,784 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:18:56,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:56,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:18:57,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 14:18:57,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:18:57,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:18:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:57,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:18:57,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:18:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:57,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:57,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:57,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:18:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:57,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:18:57,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:18:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:57,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:57,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:57,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:57,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:18:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:18:57,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:57,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:18:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:57,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:57,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:18:57,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:18:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:57,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:57,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:57,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:18:57,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 14:18:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:57,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:18:57,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:18:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:57,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 14:18:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:57,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:57,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:57,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:57,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:57,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:57,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:57,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:18:57,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489432778] [2020-09-25 14:18:57,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:57,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:18:57,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635099396] [2020-09-25 14:18:57,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:18:57,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:57,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:18:57,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:18:57,289 INFO L87 Difference]: Start difference. First operand 370 states and 411 transitions. Second operand 9 states. [2020-09-25 14:18:57,775 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:59,527 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:19:00,460 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 14:19:01,035 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 14:19:01,441 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:01,854 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:02,172 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:02,524 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:03,746 INFO L93 Difference]: Finished difference Result 1069 states and 1340 transitions. [2020-09-25 14:19:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:19:03,749 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-09-25 14:19:03,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:03,760 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 14:19:03,760 INFO L226 Difference]: Without dead ends: 809 [2020-09-25 14:19:03,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:19:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-09-25 14:19:03,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 625. [2020-09-25 14:19:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-09-25 14:19:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 717 transitions. [2020-09-25 14:19:03,934 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 717 transitions. Word has length 162 [2020-09-25 14:19:03,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:03,935 INFO L479 AbstractCegarLoop]: Abstraction has 625 states and 717 transitions. [2020-09-25 14:19:03,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:19:03,936 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 717 transitions. [2020-09-25 14:19:03,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 14:19:03,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:03,949 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] [2020-09-25 14:19:03,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:19:03,949 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:03,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1698348622, now seen corresponding path program 1 times [2020-09-25 14:19:03,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:03,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187515414] [2020-09-25 14:19:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:04,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:04,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 14:19:09,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:19:09,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:19:09,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:19:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:19:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 14:19:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,315 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:09,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:09,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 14:19:09,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:09,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:19:09,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:09,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:09,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:09,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:09,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:09,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:09,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:09,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:09,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:09,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:09,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:09,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:09,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:09,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:09,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:09,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:09,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 14:19:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:19:09,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:09,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:19:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:09,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:19:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:19:09,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:09,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:19:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:09,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:19:09,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:09,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:09,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:09,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:19:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:09,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:09,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 14:19:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:09,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:09,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:09,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:09,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 14:19:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:09,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:09,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:09,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:09,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:09,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:09,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:09,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:09,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:09,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:19:09,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187515414] [2020-09-25 14:19:09,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:09,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:19:09,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105084194] [2020-09-25 14:19:09,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:19:09,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:09,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:19:09,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:19:09,842 INFO L87 Difference]: Start difference. First operand 625 states and 717 transitions. Second operand 6 states. [2020-09-25 14:19:10,583 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:11,507 INFO L93 Difference]: Finished difference Result 1010 states and 1206 transitions. [2020-09-25 14:19:11,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:19:11,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 14:19:11,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:11,513 INFO L225 Difference]: With dead ends: 1010 [2020-09-25 14:19:11,513 INFO L226 Difference]: Without dead ends: 474 [2020-09-25 14:19:11,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:19:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-25 14:19:11,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 443. [2020-09-25 14:19:11,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-25 14:19:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 480 transitions. [2020-09-25 14:19:11,574 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 480 transitions. Word has length 167 [2020-09-25 14:19:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:11,575 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 480 transitions. [2020-09-25 14:19:11,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:19:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 480 transitions. [2020-09-25 14:19:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 14:19:11,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:11,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:11,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:19:11,579 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:11,579 INFO L82 PathProgramCache]: Analyzing trace with hash 430422311, now seen corresponding path program 1 times [2020-09-25 14:19:11,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:11,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288139737] [2020-09-25 14:19:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:19:11,646 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:19:11,646 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:19:11,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:19:11,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:11 BoogieIcfgContainer [2020-09-25 14:19:11,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:19:11,684 INFO L168 Benchmark]: Toolchain (without parser) took 31168.46 ms. Allocated memory was 140.5 MB in the beginning and 614.5 MB in the end (delta: 474.0 MB). Free memory was 101.4 MB in the beginning and 297.7 MB in the end (delta: -196.3 MB). Peak memory consumption was 277.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:11,685 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:19:11,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.35 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 174.6 MB in the end (delta: -73.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:11,687 INFO L168 Benchmark]: Boogie Preprocessor took 95.53 ms. Allocated memory is still 205.0 MB. Free memory was 174.6 MB in the beginning and 170.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:11,688 INFO L168 Benchmark]: RCFGBuilder took 1269.89 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 170.6 MB in the beginning and 177.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:11,689 INFO L168 Benchmark]: TraceAbstraction took 28993.05 ms. Allocated memory was 235.9 MB in the beginning and 614.5 MB in the end (delta: 378.5 MB). Free memory was 177.2 MB in the beginning and 297.7 MB in the end (delta: -120.6 MB). Peak memory consumption was 258.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:11,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.35 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 174.6 MB in the end (delta: -73.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.53 ms. Allocated memory is still 205.0 MB. Free memory was 174.6 MB in the beginning and 170.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1269.89 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 170.6 MB in the beginning and 177.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28993.05 ms. Allocated memory was 235.9 MB in the beginning and 614.5 MB in the end (delta: 378.5 MB). Free memory was 177.2 MB in the beginning and 297.7 MB in the end (delta: -120.6 MB). Peak memory consumption was 258.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L522] int retValue_acc ; [L523] int tmp ; [L527] FCALL select_helpers() [L528] FCALL select_features() [L529] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L529] RET, EXPR valid_product() [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L533] FCALL setup() [L534] CALL runTest() [L516] CALL test() [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 [L775] COND TRUE 1 [L777] COND TRUE splverifierCounter < 4 [L783] tmp = __VERIFIER_nondet_int() [L785] COND TRUE \read(tmp) [L787] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L787] RET waterRise() [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___2)) [L811] tmp___1 = __VERIFIER_nondet_int() [L813] COND TRUE \read(tmp___1) [L815] CALL stopSystem() [L745] COND FALSE !(\read(pumpRunning)) [L752] systemActive = 0 [L815] RET stopSystem() [L822] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND FALSE !(\read(systemActive)) [L612] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L927] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 674 SDtfs, 1320 SDslu, 820 SDs, 0 SdLazy, 1841 SolverSat, 411 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=625occurred in iteration=2, 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, 3 MinimizatonAttempts, 283 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 659 NumberOfCodeBlocks, 659 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 202507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...