/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:19:56,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:19:56,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:19:56,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:19:56,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:19:56,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:19:56,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:19:56,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:19:56,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:19:56,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:19:56,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:19:56,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:19:56,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:19:56,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:19:56,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:19:56,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:19:56,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:19:56,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:19:56,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:19:56,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:19:56,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:19:56,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:19:56,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:19:56,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:19:56,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:19:56,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:19:56,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:19:56,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:19:56,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:19:56,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:19:56,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:19:56,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:19:56,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:19:56,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:19:56,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:19:56,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:19:56,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:19:56,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:19:56,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:19:56,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:19:56,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:19:56,972 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:19:56,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:19:56,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:19:56,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:19:56,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:19:56,998 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:19:56,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:19:56,999 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:19:56,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:19:56,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:19:57,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:19:57,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:19:57,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:19:57,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:19:57,001 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:19:57,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:19:57,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:19:57,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:19:57,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:19:57,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:19:57,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:19:57,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:19:57,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:57,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:19:57,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:19:57,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:19:57,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:19:57,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:19:57,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:19:57,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:19:57,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:19:57,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:19:57,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:19:57,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:19:57,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:19:57,477 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:19:57,478 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-25 14:19:57,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d82b41866/fa4dc26e787d4daeb3c72a73da0bf00b/FLAG4a06812da [2020-09-25 14:19:58,157 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:19:58,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-25 14:19:58,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d82b41866/fa4dc26e787d4daeb3c72a73da0bf00b/FLAG4a06812da [2020-09-25 14:19:58,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d82b41866/fa4dc26e787d4daeb3c72a73da0bf00b [2020-09-25 14:19:58,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:19:58,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:19:58,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:58,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:19:58,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:19:58,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:58" (1/1) ... [2020-09-25 14:19:58,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:58, skipping insertion in model container [2020-09-25 14:19:58,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:58" (1/1) ... [2020-09-25 14:19:58,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:19:58,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:19:59,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:59,023 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:19:59,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:59,174 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:19:59,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59 WrapperNode [2020-09-25 14:19:59,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:59,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:19:59,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:19:59,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:19:59,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... [2020-09-25 14:19:59,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... [2020-09-25 14:19:59,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... [2020-09-25 14:19:59,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... [2020-09-25 14:19:59,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... [2020-09-25 14:19:59,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... [2020-09-25 14:19:59,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... [2020-09-25 14:19:59,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:19:59,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:19:59,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:19:59,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:19:59,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:19:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:19:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:19:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:19:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:19:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:19:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:19:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:19:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:19:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:19:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:19:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:19:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:19:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:19:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:19:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:19:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:19:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:19:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:19:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:19:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:19:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:19:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:19:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:19:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:19:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:19:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:19:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:19:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:19:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:19:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:19:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:19:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:19:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:19:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:19:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:19:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:19:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:19:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:19:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:19:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:19:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:19:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:19:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:19:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:19:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:19:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:19:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:19:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:19:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:19:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:19:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:19:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:19:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:19:59,469 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:19:59,469 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:19:59,469 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:19:59,469 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:19:59,469 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:19:59,469 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:19:59,470 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:19:59,470 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:19:59,472 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:19:59,472 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:19:59,472 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:19:59,472 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:19:59,472 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:19:59,473 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:19:59,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:19:59,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:19:59,473 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:19:59,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:19:59,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:19:59,474 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:19:59,474 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:19:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:19:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:19:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:19:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:19:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:19:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:19:59,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:19:59,476 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:19:59,476 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:19:59,476 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:19:59,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:19:59,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:19:59,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:20:00,738 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:20:00,738 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:20:00,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:00 BoogieIcfgContainer [2020-09-25 14:20:00,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:20:00,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:20:00,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:20:00,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:20:00,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:19:58" (1/3) ... [2020-09-25 14:20:00,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1b1db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:00, skipping insertion in model container [2020-09-25 14:20:00,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:59" (2/3) ... [2020-09-25 14:20:00,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1b1db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:00, skipping insertion in model container [2020-09-25 14:20:00,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:00" (3/3) ... [2020-09-25 14:20:00,758 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-09-25 14:20:00,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:20:00,780 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:20:00,802 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:20:00,837 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:20:00,837 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:20:00,838 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:20:00,839 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:20:00,839 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:20:00,840 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:20:00,840 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:20:00,840 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:20:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states. [2020-09-25 14:20:00,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:20:00,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:20:00,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:20:00,927 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:20:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:20:00,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times [2020-09-25 14:20:00,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:20:00,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391265514] [2020-09-25 14:20:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:20:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:01,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:01,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:03,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:06,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:06,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:20:06,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:20:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 14:20:06,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:06,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:20:06,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:20:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:20:06,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 14:20:06,851 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:20:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:20:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:06,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:20:07,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 14:20:07,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:07,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:20:07,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:20:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:07,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:20:07,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:20:07,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:20:07,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:20:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:07,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:20:07,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:20:07,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:07,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:07,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:20:07,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:20:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:07,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:07,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:20:07,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:07,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:20:07,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:20:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:07,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:20:07,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:20:07,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:07,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:07,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:20:07,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:20:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:07,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:07,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:20:07,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:20:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:20:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:20:07,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:20:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:07,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:07,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:20:07,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:20:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:20:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:20:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:20:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:07,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:07,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:07,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:07,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:07,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:20:07,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:07,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:20:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:20:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:20:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:07,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:20:07,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391265514] [2020-09-25 14:20:07,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:20:07,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:20:07,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243745610] [2020-09-25 14:20:07,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:20:07,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:20:07,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:20:07,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:20:07,521 INFO L87 Difference]: Start difference. First operand 346 states. Second operand 5 states. [2020-09-25 14:20:08,080 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:20:08,915 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:20:11,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:20:11,718 INFO L93 Difference]: Finished difference Result 904 states and 1107 transitions. [2020-09-25 14:20:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:20:11,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-09-25 14:20:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:20:11,746 INFO L225 Difference]: With dead ends: 904 [2020-09-25 14:20:11,747 INFO L226 Difference]: Without dead ends: 655 [2020-09-25 14:20:11,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:20:11,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-09-25 14:20:11,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 565. [2020-09-25 14:20:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-09-25 14:20:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 639 transitions. [2020-09-25 14:20:11,928 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 639 transitions. Word has length 153 [2020-09-25 14:20:11,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:20:11,929 INFO L479 AbstractCegarLoop]: Abstraction has 565 states and 639 transitions. [2020-09-25 14:20:11,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:20:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 639 transitions. [2020-09-25 14:20:11,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 14:20:11,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:20:11,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:20:11,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:20:11,935 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:20:11,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:20:11,936 INFO L82 PathProgramCache]: Analyzing trace with hash 554256355, now seen corresponding path program 1 times [2020-09-25 14:20:11,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:20:11,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119137623] [2020-09-25 14:20:11,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:20:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:12,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:12,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:12,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 14:20:17,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:20:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5156 [2020-09-25 14:20:17,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:20:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:20:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 14:20:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:20:17,532 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:20:17,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:20:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:20:17,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 14:20:17,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:20:17,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:17,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:20:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:20:17,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:20:17,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:20:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:17,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:20:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:20:17,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:20:17,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:20:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:17,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:20:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:17,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:20:17,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:20:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:17,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:20:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:20:17,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:20:17,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:20:17,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:20:17,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:20:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:20:17,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:20:17,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 14:20:17,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:20:17,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:20:17,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:20:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:20:17,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:20:17,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:20:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:20:17,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:17,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:20:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:20:17,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:20:17,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:20:17,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:20:17,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:17,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:20:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:17,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:20:17,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:17,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:20:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:20:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:17,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 14:20:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:17,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:18,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:18,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:18,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:18,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:20:18,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:18,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:20:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:20:18,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:20:18,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:18,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 14:20:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:20:18,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:20:18,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:20:18,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:20:18,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:20:18,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:20:18,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:20:18,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:20:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:20:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:20:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:20:18,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:20:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:20:18,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119137623] [2020-09-25 14:20:18,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:20:18,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:20:18,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380597734] [2020-09-25 14:20:18,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:20:18,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:20:18,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:20:18,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:20:18,073 INFO L87 Difference]: Start difference. First operand 565 states and 639 transitions. Second operand 9 states. [2020-09-25 14:20:18,554 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:20:20,564 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:20:20,915 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:20:21,316 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:20:21,660 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:20:22,004 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:20:22,413 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:20:22,732 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:20:24,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:20:24,541 INFO L93 Difference]: Finished difference Result 1734 states and 2298 transitions. [2020-09-25 14:20:24,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:20:24,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-09-25 14:20:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:20:24,565 INFO L225 Difference]: With dead ends: 1734 [2020-09-25 14:20:24,565 INFO L226 Difference]: Without dead ends: 1215 [2020-09-25 14:20:24,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:20:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2020-09-25 14:20:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 956. [2020-09-25 14:20:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 956 states. [2020-09-25 14:20:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1105 transitions. [2020-09-25 14:20:24,760 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1105 transitions. Word has length 167 [2020-09-25 14:20:24,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:20:24,761 INFO L479 AbstractCegarLoop]: Abstraction has 956 states and 1105 transitions. [2020-09-25 14:20:24,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:20:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1105 transitions. [2020-09-25 14:20:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 14:20:24,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:20:24,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:20:24,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:20:24,769 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:20:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:20:24,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1697188589, now seen corresponding path program 1 times [2020-09-25 14:20:24,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:20:24,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014712755] [2020-09-25 14:20:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:20:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:20:24,848 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:20:24,848 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:20:24,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:20:24,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:20:24 BoogieIcfgContainer [2020-09-25 14:20:24,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:20:24,897 INFO L168 Benchmark]: Toolchain (without parser) took 26450.72 ms. Allocated memory was 140.0 MB in the beginning and 534.8 MB in the end (delta: 394.8 MB). Free memory was 102.5 MB in the beginning and 111.1 MB in the end (delta: -8.6 MB). Peak memory consumption was 386.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:20:24,898 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:20:24,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.00 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 168.6 MB in the end (delta: -66.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:20:24,901 INFO L168 Benchmark]: Boogie Preprocessor took 161.67 ms. Allocated memory is still 203.4 MB. Free memory was 168.6 MB in the beginning and 163.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:20:24,903 INFO L168 Benchmark]: RCFGBuilder took 1410.09 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 168.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:20:24,911 INFO L168 Benchmark]: TraceAbstraction took 24144.87 ms. Allocated memory was 237.0 MB in the beginning and 534.8 MB in the end (delta: 297.8 MB). Free memory was 168.7 MB in the beginning and 111.1 MB in the end (delta: 57.6 MB). Peak memory consumption was 355.4 MB. Max. memory is 7.1 GB. [2020-09-25 14:20:24,921 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.00 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 168.6 MB in the end (delta: -66.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.67 ms. Allocated memory is still 203.4 MB. Free memory was 168.6 MB in the beginning and 163.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1410.09 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 168.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24144.87 ms. Allocated memory was 237.0 MB in the beginning and 534.8 MB in the end (delta: 297.8 MB). Free memory was 168.7 MB in the beginning and 111.1 MB in the end (delta: 57.6 MB). Peak memory consumption was 355.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L596] int retValue_acc ; [L597] int tmp ; [L601] FCALL select_helpers() [L602] FCALL select_features() [L603] CALL, EXPR valid_product() [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); [L603] RET, EXPR valid_product() [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) [L607] FCALL setup() [L608] CALL runTest() [L587] CALL test() [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) [L722] CALL waterRise() [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 [L722] RET waterRise() [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) [L748] CALL stopSystem() [L987] COND FALSE !(\read(pumpRunning)) [L994] systemActive = 0 [L748] RET stopSystem() [L755] CALL timeShift() [L776] COND FALSE !(\read(pumpRunning)) [L783] COND FALSE !(\read(systemActive)) [L791] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L694] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 658 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 577 SDtfs, 1400 SDslu, 863 SDs, 0 SdLazy, 2367 SolverSat, 457 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=956occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 349 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 138762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...