/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=SHALLOWEST --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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:36:38,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:36:38,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:36:38,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:36:38,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:36:38,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:36:38,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:36:38,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:36:38,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:36:38,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:36:38,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:36:38,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:36:38,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:36:38,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:36:38,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:36:38,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:36:38,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:36:38,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:36:38,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:36:38,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:36:38,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:36:38,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:36:38,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:36:38,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:36:38,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:36:38,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:36:38,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:36:38,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:36:38,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:36:38,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:36:38,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:36:38,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:36:38,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:36:38,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:36:38,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:36:38,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:36:38,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:36:38,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:36:38,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:36:38,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:36:38,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:36:38,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:36:38,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:36:38,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:36:38,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:36:38,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:36:38,950 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:36:38,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:36:38,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:36:38,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:36:38,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:36:38,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:36:38,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:36:38,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:36:38,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:36:38,953 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:36:38,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:36:38,954 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:36:38,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:36:38,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:36:38,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:36:38,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:36:38,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:36:38,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:36:38,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:36:38,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:36:38,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:36:38,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:36:38,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:36:38,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:36:38,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:36:38,958 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:36:39,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:36:39,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:36:39,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:36:39,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:36:39,467 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:36:39,469 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-09-24 23:36:39,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6ac429c6/a852838d90b84f80b88e050857f5651d/FLAGcd6e7893d [2020-09-24 23:36:40,175 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:36:40,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-09-24 23:36:40,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6ac429c6/a852838d90b84f80b88e050857f5651d/FLAGcd6e7893d [2020-09-24 23:36:40,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6ac429c6/a852838d90b84f80b88e050857f5651d [2020-09-24 23:36:40,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:36:40,464 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:36:40,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:40,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:36:40,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:36:40,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:40" (1/1) ... [2020-09-24 23:36:40,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:40, skipping insertion in model container [2020-09-24 23:36:40,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:40" (1/1) ... [2020-09-24 23:36:40,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:36:40,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:36:40,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:40,923 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:36:41,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:41,173 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:36:41,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41 WrapperNode [2020-09-24 23:36:41,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:41,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:36:41,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:36:41,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:36:41,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... [2020-09-24 23:36:41,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:36:41,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:36:41,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:36:41,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:36:41,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:36:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:36:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:36:41,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:36:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:36:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:36:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:36:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:36:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:36:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:36:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:36:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:36:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:36:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:36:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:36:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:36:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:36:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:36:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:36:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:36:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:36:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:36:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:36:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:36:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:36:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:36:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:36:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:36:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:36:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:36:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:36:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:36:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:36:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:36:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:36:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:36:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:36:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:36:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:36:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:36:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:36:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:36:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:36:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:36:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:36:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:36:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:36:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:36:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:36:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:36:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:36:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:36:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:36:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:36:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:36:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:36:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:36:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:36:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:36:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:36:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:36:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:36:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:36:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:36:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:36:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:36:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:36:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:36:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:36:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:36:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:36:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:36:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:36:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:36:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:36:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:36:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:36:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:36:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:36:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:36:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:36:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:36:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:36:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:36:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:36:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:36:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:36:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:36:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:36:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:36:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:36:42,687 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:36:42,688 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:36:42,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:42 BoogieIcfgContainer [2020-09-24 23:36:42,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:36:42,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:36:42,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:36:42,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:36:42,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:36:40" (1/3) ... [2020-09-24 23:36:42,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58247966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:42, skipping insertion in model container [2020-09-24 23:36:42,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:41" (2/3) ... [2020-09-24 23:36:42,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58247966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:42, skipping insertion in model container [2020-09-24 23:36:42,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:42" (3/3) ... [2020-09-24 23:36:42,712 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-09-24 23:36:42,725 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:36:42,737 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:36:42,761 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:36:42,797 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:36:42,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:36:42,797 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:36:42,798 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:36:42,798 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:36:42,798 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:36:42,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:36:42,798 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:36:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 23:36:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 23:36:42,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:42,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:36:42,854 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:42,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:42,863 INFO L82 PathProgramCache]: Analyzing trace with hash 179280132, now seen corresponding path program 1 times [2020-09-24 23:36:42,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:42,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864433766] [2020-09-24 23:36:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:43,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:43,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:45,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:48,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:48,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:36:48,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:36:48,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:36:48,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:48,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:36:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:36:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:36:48,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 23:36:48,811 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:48,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:48,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:49,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-24 23:36:49,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:36:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:49,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:49,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:49,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 23:36:49,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:49,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:49,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:49,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:49,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:36:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:49,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:49,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:49,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:36:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:49,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:49,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:49,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:36:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:49,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:49,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:36:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:49,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:49,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:49,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:49,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:49,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:36:49,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864433766] [2020-09-24 23:36:49,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:49,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:36:49,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94794525] [2020-09-24 23:36:49,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:36:49,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:49,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:36:49,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:36:49,377 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 4 states. [2020-09-24 23:36:49,991 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:52,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:52,791 INFO L93 Difference]: Finished difference Result 793 states and 949 transitions. [2020-09-24 23:36:52,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:36:52,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 23:36:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:52,819 INFO L225 Difference]: With dead ends: 793 [2020-09-24 23:36:52,819 INFO L226 Difference]: Without dead ends: 554 [2020-09-24 23:36:52,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:36:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-09-24 23:36:53,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 478. [2020-09-24 23:36:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-09-24 23:36:53,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 533 transitions. [2020-09-24 23:36:53,021 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 533 transitions. Word has length 153 [2020-09-24 23:36:53,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:53,022 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 533 transitions. [2020-09-24 23:36:53,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:36:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 533 transitions. [2020-09-24 23:36:53,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 23:36:53,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:53,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:36:53,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:36:53,030 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:53,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:53,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1284039027, now seen corresponding path program 1 times [2020-09-24 23:36:53,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:53,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465047078] [2020-09-24 23:36:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:53,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:53,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:53,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:57,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 23:36:58,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:36:58,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 23:36:58,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:36:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:36:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:36:58,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,365 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:58,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:58,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 23:36:58,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:36:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:58,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:58,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:58,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:58,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:58,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:58,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:36:58,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:58,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:58,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:58,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:58,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:58,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:36:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:36:58,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:36:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:36:58,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:36:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:36:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:36:58,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:36:58,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:36:58,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:58,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:36:58,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:58,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:58,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:36:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:58,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:58,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:36:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:58,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:58,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 23:36:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:58,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:58,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:58,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:58,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:58,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:58,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:36:58,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465047078] [2020-09-24 23:36:58,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:58,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:36:58,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115501160] [2020-09-24 23:36:58,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:36:58,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:58,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:36:58,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:36:58,886 INFO L87 Difference]: Start difference. First operand 478 states and 533 transitions. Second operand 7 states. [2020-09-24 23:36:59,411 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:37:01,025 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:37:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:37:02,505 INFO L93 Difference]: Finished difference Result 1294 states and 1580 transitions. [2020-09-24 23:37:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:37:02,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-09-24 23:37:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:37:02,515 INFO L225 Difference]: With dead ends: 1294 [2020-09-24 23:37:02,515 INFO L226 Difference]: Without dead ends: 926 [2020-09-24 23:37:02,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:37:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2020-09-24 23:37:02,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 781. [2020-09-24 23:37:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2020-09-24 23:37:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 887 transitions. [2020-09-24 23:37:02,658 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 887 transitions. Word has length 167 [2020-09-24 23:37:02,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:37:02,659 INFO L479 AbstractCegarLoop]: Abstraction has 781 states and 887 transitions. [2020-09-24 23:37:02,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:37:02,659 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 887 transitions. [2020-09-24 23:37:02,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 23:37:02,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:37:02,663 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] [2020-09-24 23:37:02,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:37:02,664 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:37:02,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:37:02,664 INFO L82 PathProgramCache]: Analyzing trace with hash 935759642, now seen corresponding path program 1 times [2020-09-24 23:37:02,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:37:02,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443128484] [2020-09-24 23:37:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:37:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:02,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:04,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:04,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 23:37:04,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:04,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1897 [2020-09-24 23:37:04,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:37:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:37:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 23:37:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:04,920 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:37:04,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:37:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:37:05,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 23:37:05,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:37:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:05,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:37:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:37:05,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:37:05,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:37:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:05,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:37:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:37:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:37:05,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:37:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:37:05,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:37:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:05,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:37:05,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:37:05,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:05,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:37:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:37:05,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:37:05,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:37:05,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:05,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 23:37:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:37:05,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:37:05,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:37:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:05,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 23:37:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:05,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:37:05,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:37:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:37:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:37:05,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:37:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:05,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:37:05,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:37:05,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:37:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:37:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:05,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 23:37:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:05,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:05,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:37:05,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:37:05,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:37:05,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:37:05,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:37:05,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:37:05,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:37:05,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:37:05,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:37:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:37:05,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443128484] [2020-09-24 23:37:05,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:37:05,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:37:05,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216969618] [2020-09-24 23:37:05,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:37:05,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:37:05,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:37:05,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:37:05,554 INFO L87 Difference]: Start difference. First operand 781 states and 887 transitions. Second operand 9 states. [2020-09-24 23:37:06,166 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:37:07,814 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:37:08,446 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 23:37:08,812 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:37:09,123 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:37:09,352 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:37:09,676 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:37:09,971 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:37:11,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:37:11,980 INFO L93 Difference]: Finished difference Result 2022 states and 2457 transitions. [2020-09-24 23:37:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:37:11,981 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 23:37:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:37:11,991 INFO L225 Difference]: With dead ends: 2022 [2020-09-24 23:37:11,992 INFO L226 Difference]: Without dead ends: 1351 [2020-09-24 23:37:11,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 23:37:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2020-09-24 23:37:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1225. [2020-09-24 23:37:12,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2020-09-24 23:37:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1423 transitions. [2020-09-24 23:37:12,148 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1423 transitions. Word has length 172 [2020-09-24 23:37:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:37:12,148 INFO L479 AbstractCegarLoop]: Abstraction has 1225 states and 1423 transitions. [2020-09-24 23:37:12,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:37:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1423 transitions. [2020-09-24 23:37:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 23:37:12,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:37:12,152 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] [2020-09-24 23:37:12,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:37:12,153 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:37:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:37:12,153 INFO L82 PathProgramCache]: Analyzing trace with hash 403214129, now seen corresponding path program 1 times [2020-09-24 23:37:12,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:37:12,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596028601] [2020-09-24 23:37:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:37:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:37:12,216 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:37:12,216 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:37:12,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:37:12,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:37:12 BoogieIcfgContainer [2020-09-24 23:37:12,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:37:12,263 INFO L168 Benchmark]: Toolchain (without parser) took 31802.71 ms. Allocated memory was 140.0 MB in the beginning and 620.2 MB in the end (delta: 480.2 MB). Free memory was 100.8 MB in the beginning and 444.7 MB in the end (delta: -343.9 MB). Peak memory consumption was 136.3 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:12,264 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 23:37:12,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.60 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 172.0 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:12,268 INFO L168 Benchmark]: Boogie Preprocessor took 106.26 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 167.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:12,275 INFO L168 Benchmark]: RCFGBuilder took 1417.49 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.9 MB in the beginning and 172.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:12,276 INFO L168 Benchmark]: TraceAbstraction took 29560.64 ms. Allocated memory was 236.5 MB in the beginning and 620.2 MB in the end (delta: 383.8 MB). Free memory was 172.5 MB in the beginning and 444.7 MB in the end (delta: -272.1 MB). Peak memory consumption was 111.6 MB. Max. memory is 7.1 GB. [2020-09-24 23:37:12,287 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.60 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 172.0 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.26 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 167.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1417.49 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.9 MB in the beginning and 172.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29560.64 ms. Allocated memory was 236.5 MB in the beginning and 620.2 MB in the end (delta: 383.8 MB). Free memory was 172.5 MB in the beginning and 444.7 MB in the end (delta: -272.1 MB). Peak memory consumption was 111.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; [L988] int retValue_acc ; [L989] int tmp ; [L993] FCALL select_helpers() [L994] FCALL select_features() [L995] CALL, EXPR valid_product() [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); [L995] RET, EXPR valid_product() [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) [L999] FCALL setup() [L1000] CALL runTest() [L982] CALL test() [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) [L68] CALL waterRise() [L830] COND TRUE waterLevel < 2 [L831] waterLevel = waterLevel + 1 [L68] RET waterRise() [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___1) [L96] CALL stopSystem() [L343] COND FALSE !(\read(pumpRunning)) [L350] systemActive = 0 [L96] RET stopSystem() [L103] CALL timeShift() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND FALSE !(\read(systemActive)) [L147] CALL __utac_acc__Specification3_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L372] CALL, EXPR isMethaneLevelCritical() [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); [L372] RET, EXPR isMethaneLevelCritical() [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L378] CALL, EXPR getWaterLevel() [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp___0 = getWaterLevel() [L380] COND TRUE tmp___0 == 2 [L382] CALL, EXPR isPumpRunning() [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] return (retValue_acc); [L382] RET, EXPR isPumpRunning() [L382] tmp___1 = isPumpRunning() [L384] COND FALSE !(\read(tmp___1)) [L388] CALL __automaton_fail() [L769] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 959 SDtfs, 1796 SDslu, 1109 SDs, 0 SdLazy, 2802 SolverSat, 599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1225occurred 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: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 347 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 220310 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...