/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_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:49:39,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:49:39,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:49:39,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:49:39,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:49:39,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:49:39,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:49:39,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:49:39,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:49:39,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:49:39,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:49:39,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:49:39,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:49:39,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:49:39,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:49:39,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:49:39,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:49:39,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:49:39,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:49:39,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:49:39,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:49:39,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:49:39,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:49:39,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:49:39,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:49:39,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:49:39,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:49:39,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:49:39,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:49:39,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:49:39,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:49:39,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:49:39,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:49:39,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:49:39,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:49:39,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:49:39,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:49:39,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:49:39,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:49:39,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:49:39,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:49:39,329 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 01:49:39,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:49:39,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:49:39,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:49:39,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:49:39,356 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:49:39,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:49:39,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:49:39,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:49:39,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:49:39,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:49:39,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:49:39,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:49:39,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:49:39,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:49:39,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:49:39,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:49:39,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:49:39,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:49:39,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:49:39,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:49:39,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:49:39,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:49:39,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:49:39,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:49:39,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:49:39,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:49:39,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:49:39,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:49:39,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:49:39,361 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 01:49:39,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:49:39,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:49:39,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:49:39,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:49:39,894 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:49:39,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-09-25 01:49:39,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9847eadb7/7c9d30c017184af1ac237fb7ffd0e66c/FLAG0acaaef93 [2020-09-25 01:49:40,521 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:49:40,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-09-25 01:49:40,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9847eadb7/7c9d30c017184af1ac237fb7ffd0e66c/FLAG0acaaef93 [2020-09-25 01:49:40,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9847eadb7/7c9d30c017184af1ac237fb7ffd0e66c [2020-09-25 01:49:40,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:49:40,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:49:40,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:49:40,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:49:40,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:49:40,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:49:40" (1/1) ... [2020-09-25 01:49:40,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a11bedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:40, skipping insertion in model container [2020-09-25 01:49:40,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:49:40" (1/1) ... [2020-09-25 01:49:40,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:49:40,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:49:41,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:49:41,435 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:49:41,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:49:41,550 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:49:41,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41 WrapperNode [2020-09-25 01:49:41,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:49:41,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:49:41,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:49:41,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:49:41,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... [2020-09-25 01:49:41,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... [2020-09-25 01:49:41,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... [2020-09-25 01:49:41,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... [2020-09-25 01:49:41,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... [2020-09-25 01:49:41,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... [2020-09-25 01:49:41,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... [2020-09-25 01:49:41,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:49:41,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:49:41,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:49:41,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:49:41,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:49:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:49:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:49:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:49:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:49:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:49:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:49:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:49:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:49:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:49:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:49:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:49:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:49:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 01:49:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:49:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:49:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:49:41,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:49:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:49:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:49:41,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:49:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:49:41,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:49:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:49:41,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:49:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:49:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:49:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:49:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:49:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:49:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:49:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:49:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:49:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:49:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:49:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:49:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:49:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:49:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:49:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:49:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:49:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:49:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:49:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:49:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:49:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:49:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:49:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:49:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:49:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:49:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:49:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:49:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:49:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:49:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:49:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:49:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:49:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:49:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:49:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:49:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 01:49:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:49:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:49:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:49:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:49:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:49:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:49:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:49:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:49:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:49:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:49:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:49:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:49:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:49:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:49:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:49:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:49:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:49:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:49:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:49:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:49:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:49:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:49:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:49:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:49:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:49:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:49:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:49:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:49:42,832 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:49:42,833 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:49:42,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:49:42 BoogieIcfgContainer [2020-09-25 01:49:42,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:49:42,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:49:42,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:49:42,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:49:42,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:49:40" (1/3) ... [2020-09-25 01:49:42,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a09751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:49:42, skipping insertion in model container [2020-09-25 01:49:42,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:49:41" (2/3) ... [2020-09-25 01:49:42,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a09751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:49:42, skipping insertion in model container [2020-09-25 01:49:42,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:49:42" (3/3) ... [2020-09-25 01:49:42,849 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-09-25 01:49:42,861 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:49:42,871 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:49:42,894 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:49:42,926 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:49:42,926 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:49:42,927 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:49:42,927 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:49:42,927 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:49:42,927 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:49:42,927 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:49:42,928 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:49:42,955 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-09-25 01:49:42,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:49:42,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:42,974 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 01:49:42,975 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:42,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:42,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1270586299, now seen corresponding path program 1 times [2020-09-25 01:49:42,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:42,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285065883] [2020-09-25 01:49:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:43,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:43,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:45,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:48,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:49:48,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:48,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 01:49:48,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:49:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:49:48,838 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:48,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:48,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:48,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:48,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:48,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:48,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 01:49:49,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:49,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:49,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:49,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:49,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:49,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:49,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:49,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:49,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:49,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:49,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:49:49,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:49,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:49,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:49,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:49,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:49,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:49,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:49:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:49,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:49,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:49,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:49,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:49:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:49,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:49,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:49,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:49,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:49,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:49:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:49,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:49,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:49,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:49,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:49,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:49,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:49,222 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 01:49:49,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285065883] [2020-09-25 01:49:49,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:49,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:49:49,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545488691] [2020-09-25 01:49:49,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:49:49,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:49,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:49:49,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:49:49,269 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 3 states. [2020-09-25 01:49:50,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:50,595 INFO L93 Difference]: Finished difference Result 422 states and 505 transitions. [2020-09-25 01:49:50,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:49:50,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:49:50,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:50,624 INFO L225 Difference]: With dead ends: 422 [2020-09-25 01:49:50,624 INFO L226 Difference]: Without dead ends: 268 [2020-09-25 01:49:50,632 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 01:49:50,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-25 01:49:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-25 01:49:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 01:49:50,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 246 transitions. [2020-09-25 01:49:50,807 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 246 transitions. Word has length 153 [2020-09-25 01:49:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:50,814 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 246 transitions. [2020-09-25 01:49:50,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:49:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 246 transitions. [2020-09-25 01:49:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:49:50,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:50,829 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 01:49:50,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:49:50,829 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:50,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:50,830 INFO L82 PathProgramCache]: Analyzing trace with hash 861129864, now seen corresponding path program 1 times [2020-09-25 01:49:50,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:50,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599373729] [2020-09-25 01:49:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:50,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:51,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:55,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:55,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:49:55,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:55,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 01:49:55,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:55,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:55,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:49:55,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:49:55,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:56,230 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:56,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:56,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 01:49:56,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:56,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:56,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:56,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:56,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:56,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:56,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:56,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:56,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:56,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:56,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:56,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:56,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:56,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:49:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:56,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:56,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:56,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:49:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:56,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:56,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:56,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:56,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:49:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:56,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:56,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:56,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:56,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:56,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:56,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:56,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:56,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:56,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:56,469 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 01:49:56,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599373729] [2020-09-25 01:49:56,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:56,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:49:56,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4225536] [2020-09-25 01:49:56,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:49:56,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:56,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:49:56,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:49:56,476 INFO L87 Difference]: Start difference. First operand 228 states and 246 transitions. Second operand 4 states. [2020-09-25 01:49:57,084 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:57,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:57,793 INFO L93 Difference]: Finished difference Result 335 states and 376 transitions. [2020-09-25 01:49:57,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:49:57,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:49:57,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:57,799 INFO L225 Difference]: With dead ends: 335 [2020-09-25 01:49:57,799 INFO L226 Difference]: Without dead ends: 251 [2020-09-25 01:49:57,801 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 01:49:57,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-09-25 01:49:57,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 218. [2020-09-25 01:49:57,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-25 01:49:57,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2020-09-25 01:49:57,857 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 154 [2020-09-25 01:49:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:57,858 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2020-09-25 01:49:57,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:49:57,858 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2020-09-25 01:49:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 01:49:57,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:57,860 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 01:49:57,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:49:57,861 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:57,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:57,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1052944498, now seen corresponding path program 1 times [2020-09-25 01:49:57,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:57,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150741771] [2020-09-25 01:49:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:57,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:58,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:00,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:00,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 01:50:00,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:50:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2801 [2020-09-25 01:50:00,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:50:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:50:00,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,024 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:01,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:01,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 01:50:01,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:01,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:01,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:01,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:01,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:01,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:01,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:01,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:01,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:01,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:01,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:50:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:50:01,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:01,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:50:01,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:50:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:01,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:01,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 01:50:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:01,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:01,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:01,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 01:50:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:01,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:01,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:01,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:01,242 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 01:50:01,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150741771] [2020-09-25 01:50:01,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:01,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:50:01,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402346435] [2020-09-25 01:50:01,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:50:01,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:01,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:50:01,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:50:01,245 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand 5 states. [2020-09-25 01:50:01,701 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:02,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:02,518 INFO L93 Difference]: Finished difference Result 381 states and 438 transitions. [2020-09-25 01:50:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:50:02,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 01:50:02,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:02,523 INFO L225 Difference]: With dead ends: 381 [2020-09-25 01:50:02,523 INFO L226 Difference]: Without dead ends: 273 [2020-09-25 01:50:02,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:50:02,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-25 01:50:02,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 218. [2020-09-25 01:50:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-25 01:50:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 232 transitions. [2020-09-25 01:50:02,574 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 232 transitions. Word has length 167 [2020-09-25 01:50:02,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:02,575 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 232 transitions. [2020-09-25 01:50:02,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:50:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 232 transitions. [2020-09-25 01:50:02,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 01:50:02,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:02,578 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] [2020-09-25 01:50:02,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:50:02,578 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:02,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:02,579 INFO L82 PathProgramCache]: Analyzing trace with hash 603443649, now seen corresponding path program 1 times [2020-09-25 01:50:02,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:02,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364529110] [2020-09-25 01:50:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:02,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:04,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:04,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 01:50:04,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1861 [2020-09-25 01:50:04,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:50:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 01:50:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 01:50:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:04,804 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:04,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:04,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:05,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 01:50:05,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 01:50:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:05,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:05,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:05,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:05,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:50:05,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:05,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:05,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:05,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:50:05,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:50:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:50:05,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:50:05,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:50:05,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:50:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:50:05,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:05,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 01:50:05,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:50:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:05,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:05,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 01:50:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:05,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:05,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:05,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 01:50:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:50:05,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:50:05,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:05,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:50:05,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:05,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 01:50:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:05,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:05,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:05,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:05,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:05,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:05,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:05,365 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 01:50:05,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364529110] [2020-09-25 01:50:05,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:05,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:50:05,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893854067] [2020-09-25 01:50:05,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:50:05,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:05,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:50:05,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:50:05,368 INFO L87 Difference]: Start difference. First operand 218 states and 232 transitions. Second operand 11 states. [2020-09-25 01:50:05,840 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:08,025 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:08,301 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:50:08,637 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:50:08,951 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:50:09,240 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:50:09,688 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:09,987 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:10,321 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:50:11,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:11,026 INFO L93 Difference]: Finished difference Result 600 states and 754 transitions. [2020-09-25 01:50:11,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 01:50:11,027 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 175 [2020-09-25 01:50:11,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:11,033 INFO L225 Difference]: With dead ends: 600 [2020-09-25 01:50:11,033 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 01:50:11,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 01:50:11,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 01:50:11,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 321. [2020-09-25 01:50:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 01:50:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 353 transitions. [2020-09-25 01:50:11,096 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 353 transitions. Word has length 175 [2020-09-25 01:50:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:11,097 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 353 transitions. [2020-09-25 01:50:11,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:50:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 353 transitions. [2020-09-25 01:50:11,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 01:50:11,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:11,100 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, 1, 1, 1] [2020-09-25 01:50:11,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:50:11,100 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:11,101 INFO L82 PathProgramCache]: Analyzing trace with hash -510510222, now seen corresponding path program 1 times [2020-09-25 01:50:11,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:11,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635531874] [2020-09-25 01:50:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:50:11,166 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:50:11,166 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:50:11,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:50:11,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:50:11 BoogieIcfgContainer [2020-09-25 01:50:11,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:50:11,200 INFO L168 Benchmark]: Toolchain (without parser) took 30382.35 ms. Allocated memory was 140.0 MB in the beginning and 618.1 MB in the end (delta: 478.2 MB). Free memory was 102.6 MB in the beginning and 316.8 MB in the end (delta: -214.2 MB). Peak memory consumption was 263.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:11,201 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 01:50:11,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.91 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 101.9 MB in the beginning and 171.0 MB in the end (delta: -69.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:11,203 INFO L168 Benchmark]: Boogie Preprocessor took 98.60 ms. Allocated memory is still 201.3 MB. Free memory was 171.0 MB in the beginning and 166.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:11,204 INFO L168 Benchmark]: RCFGBuilder took 1188.76 ms. Allocated memory was 201.3 MB in the beginning and 235.9 MB in the end (delta: 34.6 MB). Free memory was 166.3 MB in the beginning and 178.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:11,205 INFO L168 Benchmark]: TraceAbstraction took 28357.38 ms. Allocated memory was 235.9 MB in the beginning and 618.1 MB in the end (delta: 382.2 MB). Free memory was 178.9 MB in the beginning and 316.8 MB in the end (delta: -137.9 MB). Peak memory consumption was 244.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:50:11,209 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.91 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 101.9 MB in the beginning and 171.0 MB in the end (delta: -69.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.60 ms. Allocated memory is still 201.3 MB. Free memory was 171.0 MB in the beginning and 166.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1188.76 ms. Allocated memory was 201.3 MB in the beginning and 235.9 MB in the end (delta: 34.6 MB). Free memory was 166.3 MB in the beginning and 178.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28357.38 ms. Allocated memory was 235.9 MB in the beginning and 618.1 MB in the end (delta: 382.2 MB). Free memory was 178.9 MB in the beginning and 316.8 MB in the end (delta: -137.9 MB). Peak memory consumption was 244.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L458] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; [L798] int retValue_acc ; [L799] int tmp ; [L803] FCALL select_helpers() [L804] FCALL select_features() [L805] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L805] RET, EXPR valid_product() [L805] tmp = valid_product() [L807] COND TRUE \read(tmp) [L809] FCALL setup() [L810] CALL runTest() [L792] CALL test() [L659] int splverifierCounter ; [L660] int tmp ; [L661] int tmp___0 ; [L662] int tmp___1 ; [L663] int tmp___2 ; [L666] splverifierCounter = 0 [L668] COND TRUE 1 [L670] COND TRUE splverifierCounter < 4 [L676] tmp = __VERIFIER_nondet_int() [L678] COND TRUE \read(tmp) [L680] CALL waterRise() [L839] COND TRUE waterLevel < 2 [L840] waterLevel = waterLevel + 1 [L680] RET waterRise() [L686] tmp___0 = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp___0)) [L696] tmp___2 = __VERIFIER_nondet_int() [L698] COND TRUE \read(tmp___2) [L700] CALL startSystem() [L284] systemActive = 1 [L700] RET startSystem() [L713] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L167] int tmp ; [L170] COND FALSE !(\read(pumpRunning)) [L185] FCALL processEnvironment__wrappee__methaneQuery() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 603 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 843 SDtfs, 1272 SDslu, 909 SDs, 0 SdLazy, 1984 SolverSat, 425 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred 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, 299 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 829 NumberOfCodeBlocks, 829 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 645 ConstructedInterpolants, 0 QuantifiedInterpolants, 254738 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...