/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=WIDEST --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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:59:29,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:59:29,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:59:29,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:59:29,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:59:29,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:59:29,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:59:29,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:59:29,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:59:29,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:59:29,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:59:29,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:59:29,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:59:29,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:59:29,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:59:29,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:59:29,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:59:29,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:59:29,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:59:29,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:59:29,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:59:29,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:59:29,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:59:29,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:59:29,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:59:29,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:59:29,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:59:29,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:59:29,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:59:29,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:59:29,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:59:29,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:59:29,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:59:29,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:59:29,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:59:29,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:59:29,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:59:29,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:59:29,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:59:29,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:59:29,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:59:29,381 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 02:59:29,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:59:29,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:59:29,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:59:29,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:59:29,410 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:59:29,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:59:29,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:59:29,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:59:29,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:59:29,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:59:29,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:59:29,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:59:29,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:59:29,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:59:29,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:59:29,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:59:29,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:59:29,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:59:29,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:59:29,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:59:29,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:59:29,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:59:29,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:59:29,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:59:29,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:59:29,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:59:29,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:59:29,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:59:29,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:59:29,416 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:59:29,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:59:29,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:59:29,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:59:29,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:59:29,939 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:59:29,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 02:59:30,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/439a18ddf/9937f62f084e480eb585ab5be40373c3/FLAG3aaa4734d [2020-09-25 02:59:30,719 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:59:30,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 02:59:30,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/439a18ddf/9937f62f084e480eb585ab5be40373c3/FLAG3aaa4734d [2020-09-25 02:59:30,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/439a18ddf/9937f62f084e480eb585ab5be40373c3 [2020-09-25 02:59:30,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:59:30,960 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:59:30,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:30,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:59:30,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:59:30,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:30" (1/1) ... [2020-09-25 02:59:30,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d98017f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:30, skipping insertion in model container [2020-09-25 02:59:30,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:30" (1/1) ... [2020-09-25 02:59:30,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:59:31,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:59:31,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:31,579 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:59:31,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:31,746 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:59:31,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31 WrapperNode [2020-09-25 02:59:31,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:31,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:59:31,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:59:31,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:59:31,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (1/1) ... [2020-09-25 02:59:31,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (1/1) ... [2020-09-25 02:59:31,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (1/1) ... [2020-09-25 02:59:31,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (1/1) ... [2020-09-25 02:59:31,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (1/1) ... [2020-09-25 02:59:31,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (1/1) ... [2020-09-25 02:59:31,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (1/1) ... [2020-09-25 02:59:31,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:59:31,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:59:31,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:59:31,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:59:31,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (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 02:59:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:59:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:59:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:59:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:59:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:59:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:59:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:59:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:59:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:59:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:59:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:59:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:59:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:59:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:59:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:59:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:59:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:59:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:59:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:59:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:59:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:59:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:59:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:59:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:59:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:59:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:59:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:59:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:59:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:59:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:59:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:59:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:59:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:59:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:59:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:59:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:59:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:59:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:59:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:59:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:59:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:59:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:59:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:59:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:59:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:59:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:59:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:59:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:59:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:59:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:59:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:59:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:59:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:59:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:59:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:59:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:59:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:59:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:59:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:59:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:59:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:59:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:59:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:59:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:59:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:59:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:59:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:59:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:59:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:59:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:59:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:59:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:59:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:59:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:59:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:59:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:59:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:59:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:59:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:59:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:59:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:59:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:59:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:59:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:59:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:59:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:59:33,191 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:59:33,191 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:59:33,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:33 BoogieIcfgContainer [2020-09-25 02:59:33,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:59:33,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:59:33,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:59:33,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:59:33,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:59:30" (1/3) ... [2020-09-25 02:59:33,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b04c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:33, skipping insertion in model container [2020-09-25 02:59:33,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:31" (2/3) ... [2020-09-25 02:59:33,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b04c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:33, skipping insertion in model container [2020-09-25 02:59:33,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:33" (3/3) ... [2020-09-25 02:59:33,210 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-25 02:59:33,223 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:59:33,236 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:59:33,260 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:59:33,298 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:59:33,298 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:59:33,298 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:59:33,298 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:59:33,299 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:59:33,299 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:59:33,299 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:59:33,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:59:33,332 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-25 02:59:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:59:33,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:33,353 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 02:59:33,353 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:33,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:33,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-09-25 02:59:33,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:33,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009867466] [2020-09-25 02:59:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:33,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:35,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:38,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:38,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:59:38,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:38,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 02:59:38,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:38,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:59:38,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:59:38,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 02:59:38,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 02:59:39,526 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:39,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:39,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 02:59:39,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:39,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:59:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:39,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:39,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:39,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:39,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:39,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:39,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:39,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:39,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:39,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:39,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:59:39,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:39,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:39,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:39,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:39,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:39,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:39,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:39,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:39,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:39,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:59:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:39,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:39,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:39,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:59:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:59:40,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:40,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:40,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:59:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:40,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,086 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 02:59:40,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009867466] [2020-09-25 02:59:40,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:40,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:59:40,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925193485] [2020-09-25 02:59:40,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:59:40,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:40,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:59:40,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:59:40,122 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 8 states. [2020-09-25 02:59:40,811 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:42,622 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:59:43,041 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:59:43,452 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:43,845 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:44,156 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:44,501 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:44,815 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:46,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:46,609 INFO L93 Difference]: Finished difference Result 715 states and 882 transitions. [2020-09-25 02:59:46,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:59:46,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:59:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:46,636 INFO L225 Difference]: With dead ends: 715 [2020-09-25 02:59:46,637 INFO L226 Difference]: Without dead ends: 495 [2020-09-25 02:59:46,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 02:59:46,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-25 02:59:46,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 444. [2020-09-25 02:59:46,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-25 02:59:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 506 transitions. [2020-09-25 02:59:46,829 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 506 transitions. Word has length 153 [2020-09-25 02:59:46,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:46,830 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 506 transitions. [2020-09-25 02:59:46,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:59:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 506 transitions. [2020-09-25 02:59:46,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 02:59:46,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:46,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:46,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:59:46,838 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:46,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:46,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1535639593, now seen corresponding path program 1 times [2020-09-25 02:59:46,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:46,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828727238] [2020-09-25 02:59:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:46,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 02:59:47,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-09-25 02:59:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 02:59:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:59:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,624 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:47,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:47,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 02:59:47,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:47,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:47,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:47,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:47,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:47,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:47,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:47,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:47,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:47,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:47,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:59:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:47,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:47,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:59:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:59:47,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:47,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:59:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 02:59:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:47,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:47,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:59:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:47,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:47,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 02:59:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:47,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:47,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:47,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,919 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 02:59:47,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828727238] [2020-09-25 02:59:47,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:47,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:59:47,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044104879] [2020-09-25 02:59:47,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:59:47,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:47,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:59:47,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:59:47,924 INFO L87 Difference]: Start difference. First operand 444 states and 506 transitions. Second operand 6 states. [2020-09-25 02:59:48,410 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:51,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:51,541 INFO L93 Difference]: Finished difference Result 1240 states and 1523 transitions. [2020-09-25 02:59:51,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:59:51,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 02:59:51,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:51,551 INFO L225 Difference]: With dead ends: 1240 [2020-09-25 02:59:51,552 INFO L226 Difference]: Without dead ends: 906 [2020-09-25 02:59:51,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:59:51,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-09-25 02:59:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 749. [2020-09-25 02:59:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-09-25 02:59:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 869 transitions. [2020-09-25 02:59:51,707 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 869 transitions. Word has length 172 [2020-09-25 02:59:51,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:51,708 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 869 transitions. [2020-09-25 02:59:51,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:59:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 869 transitions. [2020-09-25 02:59:51,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 02:59:51,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:51,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:51,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:59:51,713 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:51,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1849841415, now seen corresponding path program 1 times [2020-09-25 02:59:51,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:51,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064423276] [2020-09-25 02:59:51,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:51,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:51,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:52,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:52,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:52,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:56,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:56,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 02:59:56,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:59:56,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 02:59:56,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:56,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:59:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:59:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 02:59:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:57,098 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:57,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:57,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 02:59:57,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:57,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:57,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:59:57,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:57,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:57,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:57,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:57,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:57,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:59:57,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:57,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:57,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:57,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:57,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:57,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 02:59:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:57,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:59:57,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:59:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:57,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 02:59:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:59:57,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:59:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:59:57,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:59:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:59:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:59:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:59:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:59:57,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:59:57,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:59:57,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:59:57,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:59:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:57,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:57,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:57,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:57,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 02:59:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:57,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:57,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:57,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:59:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:57,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:57,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 02:59:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:57,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:57,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:57,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:57,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:57,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:57,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:57,645 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 02:59:57,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064423276] [2020-09-25 02:59:57,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:57,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:59:57,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315535190] [2020-09-25 02:59:57,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:59:57,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:57,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:59:57,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:59:57,649 INFO L87 Difference]: Start difference. First operand 749 states and 869 transitions. Second operand 7 states. [2020-09-25 02:59:58,257 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:00:00,372 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:02,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:00:02,641 INFO L93 Difference]: Finished difference Result 2078 states and 2669 transitions. [2020-09-25 03:00:02,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 03:00:02,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 03:00:02,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:00:02,654 INFO L225 Difference]: With dead ends: 2078 [2020-09-25 03:00:02,654 INFO L226 Difference]: Without dead ends: 1439 [2020-09-25 03:00:02,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:00:02,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2020-09-25 03:00:02,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1209. [2020-09-25 03:00:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-09-25 03:00:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1415 transitions. [2020-09-25 03:00:02,868 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1415 transitions. Word has length 172 [2020-09-25 03:00:02,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:00:02,869 INFO L479 AbstractCegarLoop]: Abstraction has 1209 states and 1415 transitions. [2020-09-25 03:00:02,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:00:02,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1415 transitions. [2020-09-25 03:00:02,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 03:00:02,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:02,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:00:02,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:00:02,876 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:02,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:02,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-09-25 03:00:02,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:02,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151419361] [2020-09-25 03:00:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:00:02,953 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:00:02,954 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:00:02,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:00:03,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:00:02 BoogieIcfgContainer [2020-09-25 03:00:03,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:00:03,003 INFO L168 Benchmark]: Toolchain (without parser) took 32047.20 ms. Allocated memory was 137.4 MB in the beginning and 708.3 MB in the end (delta: 570.9 MB). Free memory was 98.3 MB in the beginning and 582.6 MB in the end (delta: -484.2 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:03,005 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 03:00:03,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.28 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 97.6 MB in the beginning and 166.3 MB in the end (delta: -68.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:03,010 INFO L168 Benchmark]: Boogie Preprocessor took 101.21 ms. Allocated memory is still 200.3 MB. Free memory was 166.3 MB in the beginning and 161.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:03,017 INFO L168 Benchmark]: RCFGBuilder took 1350.63 ms. Allocated memory was 200.3 MB in the beginning and 229.1 MB in the end (delta: 28.8 MB). Free memory was 161.5 MB in the beginning and 169.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:03,018 INFO L168 Benchmark]: TraceAbstraction took 29798.94 ms. Allocated memory was 229.1 MB in the beginning and 708.3 MB in the end (delta: 479.2 MB). Free memory was 168.3 MB in the beginning and 582.6 MB in the end (delta: -414.3 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:03,030 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.28 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 97.6 MB in the beginning and 166.3 MB in the end (delta: -68.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.21 ms. Allocated memory is still 200.3 MB. Free memory was 166.3 MB in the beginning and 161.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1350.63 ms. Allocated memory was 200.3 MB in the beginning and 229.1 MB in the end (delta: 28.8 MB). Free memory was 161.5 MB in the beginning and 169.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29798.94 ms. Allocated memory was 229.1 MB in the beginning and 708.3 MB in the end (delta: 479.2 MB). Free memory was 168.3 MB in the beginning and 582.6 MB in the end (delta: -414.3 MB). Peak memory consumption was 64.9 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: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] 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 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 956 SDtfs, 1948 SDslu, 1263 SDs, 0 SdLazy, 3021 SolverSat, 761 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1209occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.1s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 207651 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...