/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=NARROWEST --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 01:49:55,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:49:55,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:49:55,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:49:55,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:49:55,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:49:55,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:49:55,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:49:55,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:49:55,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:49:55,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:49:55,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:49:55,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:49:55,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:49:55,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:49:55,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:49:55,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:49:55,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:49:55,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:49:55,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:49:55,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:49:55,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:49:55,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:49:55,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:49:55,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:49:55,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:49:55,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:49:55,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:49:55,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:49:55,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:49:55,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:49:55,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:49:55,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:49:55,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:49:55,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:49:55,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:49:55,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:49:55,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:49:55,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:49:55,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:49:55,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:49:55,525 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 01:49:55,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:49:55,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:49:55,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:49:55,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:49:55,554 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:49:55,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:49:55,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:49:55,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:49:55,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:49:55,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:49:55,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:49:55,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:49:55,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:49:55,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:49:55,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:49:55,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:49:55,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:49:55,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:49:55,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:49:55,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:49:55,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:49:55,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:49:55,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:49:55,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:49:55,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:49:55,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:49:55,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:49:55,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:49:55,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:49:55,559 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:49:56,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:49:56,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:49:56,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:49:56,114 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:49:56,116 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:49:56,117 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 01:49:56,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee17a89ef/fa29f5487fc24fbdba3a79f5440187d7/FLAG1fdfe1da5 [2020-09-25 01:49:56,905 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:49:56,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 01:49:56,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee17a89ef/fa29f5487fc24fbdba3a79f5440187d7/FLAG1fdfe1da5 [2020-09-25 01:49:57,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee17a89ef/fa29f5487fc24fbdba3a79f5440187d7 [2020-09-25 01:49:57,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:49:57,209 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:49:57,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:49:57,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:49:57,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:49:57,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:57,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57, skipping insertion in model container [2020-09-25 01:49:57,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:57,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:49:57,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:49:57,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:49:57,801 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:49:57,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:49:57,990 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:49:57,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57 WrapperNode [2020-09-25 01:49:57,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:49:57,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:49:57,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:49:57,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:49:58,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:58,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:58,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:58,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:58,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:58,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:58,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (1/1) ... [2020-09-25 01:49:58,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:49:58,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:49:58,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:49:58,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:49:58,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (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 01:49:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:49:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:49:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:49:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:49:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:49:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:49:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:49:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:49:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:49:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:49:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:49:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:49:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:49:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:49:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:49:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:49:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:49:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:49:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:49:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:49:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:49:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:49:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:49:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:49:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:49:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:49:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:49:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:49:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:49:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:49:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:49:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:49:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:49:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:49:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:49:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:49:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:49:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:49:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:49:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:49:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:49:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:49:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:49:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:49:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:49:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:49:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:49:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:49:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:49:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:49:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:49:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:49:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:49:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:49:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:49:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:49:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:49:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:49:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:49:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:49:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:49:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:49:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:49:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:49:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:49:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:49:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:49:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:49:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:49:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:49:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:49:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:49:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:49:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:49:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:49:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:49:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:49:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:49:59,302 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:49:59,302 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:49:59,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:49:59 BoogieIcfgContainer [2020-09-25 01:49:59,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:49:59,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:49:59,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:49:59,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:49:59,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:49:57" (1/3) ... [2020-09-25 01:49:59,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f97768d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:49:59, skipping insertion in model container [2020-09-25 01:49:59,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:57" (2/3) ... [2020-09-25 01:49:59,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f97768d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:49:59, skipping insertion in model container [2020-09-25 01:49:59,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:49:59" (3/3) ... [2020-09-25 01:49:59,321 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-09-25 01:49:59,332 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:49:59,344 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:49:59,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:49:59,397 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:49:59,397 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:49:59,397 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:49:59,397 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:49:59,397 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:49:59,397 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:49:59,397 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:49:59,398 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:49:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 01:49:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:49:59,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:59,443 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 01:49:59,444 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:59,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:59,452 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times [2020-09-25 01:49:59,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:59,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153425897] [2020-09-25 01:49:59,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:00,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:00,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:04,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:04,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:50:04,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:50:04,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 01:50:04,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:04,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:50:04,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:04,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:50:05,379 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:05,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 01:50:05,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:05,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:50:05,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:05,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:05,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:50:05,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:05,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:05,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:50:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:05,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:50:05,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:50:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:05,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:05,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:50:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:05,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,700 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 01:50:05,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153425897] [2020-09-25 01:50:05,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:05,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:50:05,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239558856] [2020-09-25 01:50:05,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:50:05,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:05,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:50:05,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:50:05,738 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-09-25 01:50:07,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:07,182 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-25 01:50:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:50:07,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:50:07,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:07,204 INFO L225 Difference]: With dead ends: 458 [2020-09-25 01:50:07,205 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 01:50:07,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:50:07,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 01:50:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 01:50:07,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 01:50:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-25 01:50:07,343 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-25 01:50:07,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:07,346 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-25 01:50:07,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:50:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-25 01:50:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:50:07,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:07,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:50:07,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:50:07,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:07,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:07,359 INFO L82 PathProgramCache]: Analyzing trace with hash -809983640, now seen corresponding path program 1 times [2020-09-25 01:50:07,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:07,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348447723] [2020-09-25 01:50:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:07,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:09,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:12,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:12,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:50:12,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:50:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 01:50:12,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:50:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:50:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:12,828 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:12,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:12,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:12,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:12,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:12,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:12,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 01:50:12,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:12,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:12,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:12,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:12,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:12,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:12,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:12,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:12,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:12,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:12,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:12,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:12,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:12,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:12,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:12,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:12,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:12,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:12,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:12,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:12,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:12,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:12,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:12,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:12,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:13,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:13,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:13,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:13,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:13,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:13,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:13,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:13,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:13,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:13,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:13,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:13,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:13,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:13,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:13,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:13,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:13,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:13,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:13,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:13,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:50:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:13,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:13,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:13,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:13,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:13,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:13,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:13,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:13,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:13,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:13,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:50:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:13,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:13,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:13,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:13,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:13,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:13,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:13,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:13,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:50:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:13,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:13,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:13,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:13,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:13,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:13,060 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 01:50:13,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348447723] [2020-09-25 01:50:13,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:13,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:50:13,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545909688] [2020-09-25 01:50:13,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:50:13,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:13,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:50:13,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:50:13,064 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-25 01:50:13,674 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:50:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:14,543 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-25 01:50:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:50:14,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:50:14,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:14,550 INFO L225 Difference]: With dead ends: 365 [2020-09-25 01:50:14,550 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 01:50:14,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:50:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 01:50:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-25 01:50:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 01:50:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 01:50:14,598 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 01:50:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:14,599 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 01:50:14,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:50:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 01:50:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 01:50:14,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:14,602 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 01:50:14,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:50:14,602 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:14,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:14,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1505861819, now seen corresponding path program 1 times [2020-09-25 01:50:14,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:14,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952567031] [2020-09-25 01:50:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:14,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:14,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 01:50:17,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:50:17,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2859 [2020-09-25 01:50:17,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:50:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:50:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,787 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:17,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:17,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 01:50:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:17,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:17,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:17,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:17,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:17,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:17,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:17,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:17,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:17,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:50:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:50:17,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:17,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:17,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:50:17,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:50:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:17,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:17,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:17,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 01:50:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:17,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:17,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 01:50:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:17,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:17,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:17,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:17,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:17,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:17,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:17,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:17,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:17,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:17,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:18,021 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 01:50:18,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952567031] [2020-09-25 01:50:18,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:18,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:50:18,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315247524] [2020-09-25 01:50:18,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:50:18,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:18,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:50:18,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:50:18,024 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 01:50:18,511 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:20,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:20,012 INFO L93 Difference]: Finished difference Result 551 states and 637 transitions. [2020-09-25 01:50:20,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:50:20,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 01:50:20,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:20,019 INFO L225 Difference]: With dead ends: 551 [2020-09-25 01:50:20,019 INFO L226 Difference]: Without dead ends: 426 [2020-09-25 01:50:20,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:50:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-25 01:50:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 350. [2020-09-25 01:50:20,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 01:50:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 385 transitions. [2020-09-25 01:50:20,107 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 385 transitions. Word has length 167 [2020-09-25 01:50:20,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:20,108 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 385 transitions. [2020-09-25 01:50:20,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:50:20,108 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 385 transitions. [2020-09-25 01:50:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 01:50:20,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:20,111 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] [2020-09-25 01:50:20,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:50:20,111 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:20,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:20,112 INFO L82 PathProgramCache]: Analyzing trace with hash 955206154, now seen corresponding path program 1 times [2020-09-25 01:50:20,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:20,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569828241] [2020-09-25 01:50:20,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:20,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:21,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:21,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:50:21,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1785 [2020-09-25 01:50:21,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:50:21,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 01:50:21,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 01:50:21,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:22,364 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:22,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:22,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 01:50:22,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 01:50:22,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:22,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:22,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:22,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:22,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:22,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:22,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:22,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:22,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:22,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:50:22,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:22,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:22,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:22,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:22,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:50:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:50:22,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:22,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:50:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:22,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:50:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:22,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:22,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:22,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:22,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:22,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 01:50:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:22,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:50:22,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:50:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:22,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:22,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:22,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 01:50:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:22,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:22,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:22,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:22,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:22,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:22,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:22,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:22,903 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 01:50:22,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569828241] [2020-09-25 01:50:22,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:22,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:50:22,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167930128] [2020-09-25 01:50:22,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:50:22,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:22,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:50:22,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:50:22,907 INFO L87 Difference]: Start difference. First operand 350 states and 385 transitions. Second operand 10 states. [2020-09-25 01:50:23,681 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:25,515 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:26,153 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 01:50:26,570 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:50:26,962 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:27,291 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:50:27,632 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:50:27,941 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:50:28,387 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:29,241 INFO L93 Difference]: Finished difference Result 928 states and 1119 transitions. [2020-09-25 01:50:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:50:29,243 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 01:50:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:29,250 INFO L225 Difference]: With dead ends: 928 [2020-09-25 01:50:29,251 INFO L226 Difference]: Without dead ends: 688 [2020-09-25 01:50:29,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 01:50:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-09-25 01:50:29,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 583. [2020-09-25 01:50:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-25 01:50:29,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 661 transitions. [2020-09-25 01:50:29,342 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 661 transitions. Word has length 172 [2020-09-25 01:50:29,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:29,343 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 661 transitions. [2020-09-25 01:50:29,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:50:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 661 transitions. [2020-09-25 01:50:29,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 01:50:29,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:29,348 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 01:50:29,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:50:29,348 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:29,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:29,349 INFO L82 PathProgramCache]: Analyzing trace with hash 430422311, now seen corresponding path program 1 times [2020-09-25 01:50:29,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:29,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438977649] [2020-09-25 01:50:29,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:50:29,417 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:50:29,417 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:50:29,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:50:29,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:50:29 BoogieIcfgContainer [2020-09-25 01:50:29,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:50:29,452 INFO L168 Benchmark]: Toolchain (without parser) took 32247.30 ms. Allocated memory was 137.9 MB in the beginning and 676.9 MB in the end (delta: 539.0 MB). Free memory was 99.4 MB in the beginning and 541.4 MB in the end (delta: -442.1 MB). Peak memory consumption was 96.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:29,453 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:50:29,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.55 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.7 MB in the beginning and 167.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:29,455 INFO L168 Benchmark]: Boogie Preprocessor took 96.98 ms. Allocated memory is still 200.3 MB. Free memory was 167.5 MB in the beginning and 162.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:29,456 INFO L168 Benchmark]: RCFGBuilder took 1221.52 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 162.7 MB in the beginning and 173.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:29,457 INFO L168 Benchmark]: TraceAbstraction took 30138.92 ms. Allocated memory was 230.2 MB in the beginning and 676.9 MB in the end (delta: 446.7 MB). Free memory was 173.4 MB in the beginning and 541.4 MB in the end (delta: -368.0 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:29,461 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.55 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 98.7 MB in the beginning and 167.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.98 ms. Allocated memory is still 200.3 MB. Free memory was 167.5 MB in the beginning and 162.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1221.52 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 162.7 MB in the beginning and 173.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30138.92 ms. Allocated memory was 230.2 MB in the beginning and 676.9 MB in the end (delta: 446.7 MB). Free memory was 173.4 MB in the beginning and 541.4 MB in the end (delta: -368.0 MB). Peak memory consumption was 78.7 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: 30.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 1432 SDslu, 867 SDs, 0 SdLazy, 1988 SolverSat, 506 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=583occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 256403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...