/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=BIGGEST --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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:12:06,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:12:06,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:12:06,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:12:06,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:12:06,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:12:06,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:12:06,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:12:06,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:12:06,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:12:06,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:12:06,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:12:06,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:12:06,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:12:06,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:12:06,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:12:06,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:12:06,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:12:06,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:12:06,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:12:06,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:12:06,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:12:06,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:12:06,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:12:06,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:12:06,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:12:06,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:12:06,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:12:06,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:12:06,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:12:06,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:12:06,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:12:06,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:12:06,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:12:06,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:12:06,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:12:06,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:12:06,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:12:06,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:12:06,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:12:06,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:12:06,495 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 20:12:06,520 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:12:06,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:12:06,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:12:06,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:12:06,522 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:12:06,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:12:06,526 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:12:06,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:12:06,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:12:06,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:12:06,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:12:06,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:12:06,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:12:06,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:12:06,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:12:06,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:12:06,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:12:06,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:12:06,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:12:06,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:12:06,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:12:06,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:12:06,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:12:06,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:12:06,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:12:06,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:12:06,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:12:06,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:12:06,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:12:06,530 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:12:06,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:12:07,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:12:07,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:12:07,023 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:12:07,024 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:12:07,025 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-24 20:12:07,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07fae2bd2/3bf647c25dff44a5bf44e2fdd5d977a4/FLAGd4d92a746 [2020-09-24 20:12:07,716 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:12:07,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-24 20:12:07,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07fae2bd2/3bf647c25dff44a5bf44e2fdd5d977a4/FLAGd4d92a746 [2020-09-24 20:12:08,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07fae2bd2/3bf647c25dff44a5bf44e2fdd5d977a4 [2020-09-24 20:12:08,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:12:08,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:12:08,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:08,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:12:08,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:12:08,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08, skipping insertion in model container [2020-09-24 20:12:08,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:12:08,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:12:08,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:08,698 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:12:08,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:12:08,849 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:12:08,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08 WrapperNode [2020-09-24 20:12:08,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:12:08,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:12:08,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:12:08,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:12:08,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (1/1) ... [2020-09-24 20:12:08,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:12:08,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:12:08,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:12:08,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:12:08,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (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 20:12:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:12:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:12:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:09,060 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:12:09,060 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:12:09,061 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:12:09,061 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:12:09,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:12:09,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:12:09,063 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:12:09,063 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:12:09,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:12:09,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:12:09,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:12:09,064 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:12:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:12:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:12:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:12:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:12:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:12:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:12:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:12:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:12:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:12:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:12:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:12:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:12:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:12:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:12:09,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:12:09,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:12:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:12:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:12:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:12:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:12:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:12:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:12:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:12:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:12:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:12:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:12:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:12:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 20:12:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:12:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:12:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:12:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:12:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:12:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:12:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:12:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:12:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:12:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:12:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:12:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:12:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:12:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:12:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:12:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:12:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:12:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:12:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:12:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:12:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:12:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:12:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:12:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:12:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:12:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:12:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:12:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:12:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:12:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:12:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:12:10,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:12:10,232 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:12:10,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:10 BoogieIcfgContainer [2020-09-24 20:12:10,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:12:10,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:12:10,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:12:10,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:12:10,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:08" (1/3) ... [2020-09-24 20:12:10,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bb5c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:10, skipping insertion in model container [2020-09-24 20:12:10,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:08" (2/3) ... [2020-09-24 20:12:10,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bb5c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:10, skipping insertion in model container [2020-09-24 20:12:10,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:10" (3/3) ... [2020-09-24 20:12:10,249 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-24 20:12:10,262 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:12:10,273 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:12:10,297 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:12:10,331 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:12:10,331 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:12:10,331 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:12:10,332 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:12:10,332 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:12:10,332 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:12:10,332 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:12:10,332 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:12:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-24 20:12:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 20:12:10,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:10,383 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 20:12:10,384 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:10,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-24 20:12:10,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:10,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386994674] [2020-09-24 20:12:10,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:10,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:11,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:15,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:15,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 20:12:15,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:12:15,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4272 [2020-09-24 20:12:15,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:12:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:12:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 20:12:15,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 20:12:15,581 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:12:15,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:15,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:15,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:15,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:12:15,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:15,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-24 20:12:15,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:12:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:12:16,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:12:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:16,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:16,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:16,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:16,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:12:16,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:16,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:16,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:12:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:16,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:16,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:16,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:16,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:16,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:16,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:16,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:16,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:16,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:12:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:16,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:16,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:16,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:16,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:12:16,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:16,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:12:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:16,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:16,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:16,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:16,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:16,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:16,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:16,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:16,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:12:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:16,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:16,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:16,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:16,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:16,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:16,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:16,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:16,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 20:12:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:16,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:16,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:16,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:16,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:16,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:12:16,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:16,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:16,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 20:12:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:16,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:16,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:16,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:16,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:16,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:16,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:16,284 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 20:12:16,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386994674] [2020-09-24 20:12:16,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:16,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:12:16,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718611431] [2020-09-24 20:12:16,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:12:16,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:16,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:12:16,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:12:16,321 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 8 states. [2020-09-24 20:12:16,921 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:12:18,190 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:18,787 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 20:12:19,420 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 20:12:19,767 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:20,102 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:20,408 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:20,726 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:21,566 INFO L93 Difference]: Finished difference Result 457 states and 559 transitions. [2020-09-24 20:12:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:12:21,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 20:12:21,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:21,589 INFO L225 Difference]: With dead ends: 457 [2020-09-24 20:12:21,589 INFO L226 Difference]: Without dead ends: 318 [2020-09-24 20:12:21,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:12:21,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-24 20:12:21,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 286. [2020-09-24 20:12:21,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-24 20:12:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 319 transitions. [2020-09-24 20:12:21,706 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 319 transitions. Word has length 153 [2020-09-24 20:12:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:21,707 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 319 transitions. [2020-09-24 20:12:21,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:12:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 319 transitions. [2020-09-24 20:12:21,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 20:12:21,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:21,714 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] [2020-09-24 20:12:21,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:12:21,714 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:21,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:21,715 INFO L82 PathProgramCache]: Analyzing trace with hash -777322396, now seen corresponding path program 1 times [2020-09-24 20:12:21,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:21,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048108925] [2020-09-24 20:12:21,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:21,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:21,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:22,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:22,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:26,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:26,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 20:12:26,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:12:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 20:12:26,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:12:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:12:26,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 20:12:26,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,124 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:12:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:12:27,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 20:12:27,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:12:27,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:12:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:27,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:27,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:12:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:27,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:27,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:27,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:27,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:27,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:12:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:27,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:12:27,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:12:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:27,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:27,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:27,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:12:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:27,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:12:27,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:12:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:12:27,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 20:12:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:12:27,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:12:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:27,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:12:27,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:12:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:27,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:12:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:27,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:27,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:27,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:27,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:27,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:27,675 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 20:12:27,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048108925] [2020-09-24 20:12:27,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:27,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 20:12:27,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71858251] [2020-09-24 20:12:27,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:12:27,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:27,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:12:27,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:12:27,681 INFO L87 Difference]: Start difference. First operand 286 states and 319 transitions. Second operand 12 states. [2020-09-24 20:12:28,215 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:12:29,174 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:12:30,003 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:30,375 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:30,760 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:31,111 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:31,431 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:31,778 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:32,074 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:32,363 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:32,689 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:32,977 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:12:33,310 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:12:33,664 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:34,019 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:12:34,579 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-09-24 20:12:35,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:35,627 INFO L93 Difference]: Finished difference Result 511 states and 622 transitions. [2020-09-24 20:12:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 20:12:35,628 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2020-09-24 20:12:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:35,634 INFO L225 Difference]: With dead ends: 511 [2020-09-24 20:12:35,634 INFO L226 Difference]: Without dead ends: 386 [2020-09-24 20:12:35,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2020-09-24 20:12:35,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-24 20:12:35,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 336. [2020-09-24 20:12:35,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-24 20:12:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 371 transitions. [2020-09-24 20:12:35,691 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 371 transitions. Word has length 159 [2020-09-24 20:12:35,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:35,692 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 371 transitions. [2020-09-24 20:12:35,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:12:35,692 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 371 transitions. [2020-09-24 20:12:35,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-24 20:12:35,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:35,696 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] [2020-09-24 20:12:35,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:12:35,697 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:35,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:35,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1502590393, now seen corresponding path program 1 times [2020-09-24 20:12:35,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:35,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366110391] [2020-09-24 20:12:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:35,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 20:12:36,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-09-24 20:12:36,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:12:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:12:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:36,351 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:12:36,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:12:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:12:36,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-24 20:12:36,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:36,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:12:36,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:36,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:12:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:36,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:12:36,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:36,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:12:36,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:12:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:36,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:36,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:36,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:12:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:36,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:12:36,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:12:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:12:36,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:12:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:12:36,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:12:36,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:12:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:36,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:12:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:12:36,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:12:36,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:12:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:12:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:12:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:36,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:12:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:36,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:36,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:36,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:36,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:36,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:36,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 20:12:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:36,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:12:36,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:36,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:12:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:36,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:36,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:12:36,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:12:36,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:12:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:12:36,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:12:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:12:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:12:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:12:36,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:12:36,887 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 20:12:36,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366110391] [2020-09-24 20:12:36,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:12:36,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:12:36,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903645649] [2020-09-24 20:12:36,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:12:36,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:12:36,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:12:36,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:12:36,892 INFO L87 Difference]: Start difference. First operand 336 states and 371 transitions. Second operand 5 states. [2020-09-24 20:12:37,366 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:12:38,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:38,120 INFO L93 Difference]: Finished difference Result 597 states and 693 transitions. [2020-09-24 20:12:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:12:38,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-24 20:12:38,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:38,125 INFO L225 Difference]: With dead ends: 597 [2020-09-24 20:12:38,126 INFO L226 Difference]: Without dead ends: 371 [2020-09-24 20:12:38,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:12:38,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-24 20:12:38,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 336. [2020-09-24 20:12:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-24 20:12:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 367 transitions. [2020-09-24 20:12:38,168 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 367 transitions. Word has length 168 [2020-09-24 20:12:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:38,169 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 367 transitions. [2020-09-24 20:12:38,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:12:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 367 transitions. [2020-09-24 20:12:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 20:12:38,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:38,173 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] [2020-09-24 20:12:38,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:12:38,174 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:38,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:38,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-24 20:12:38,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:38,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294387343] [2020-09-24 20:12:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:12:38,238 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:12:38,238 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:12:38,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:12:38,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:12:38 BoogieIcfgContainer [2020-09-24 20:12:38,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:12:38,273 INFO L168 Benchmark]: Toolchain (without parser) took 30251.87 ms. Allocated memory was 146.3 MB in the beginning and 562.0 MB in the end (delta: 415.8 MB). Free memory was 100.4 MB in the beginning and 388.2 MB in the end (delta: -287.8 MB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2020-09-24 20:12:38,274 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 20:12:38,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.68 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 99.7 MB in the beginning and 175.1 MB in the end (delta: -75.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:12:38,276 INFO L168 Benchmark]: Boogie Preprocessor took 118.68 ms. Allocated memory is still 205.0 MB. Free memory was 175.1 MB in the beginning and 171.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:12:38,277 INFO L168 Benchmark]: RCFGBuilder took 1269.83 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 171.0 MB in the beginning and 187.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:12:38,278 INFO L168 Benchmark]: TraceAbstraction took 28030.01 ms. Allocated memory was 238.0 MB in the beginning and 562.0 MB in the end (delta: 324.0 MB). Free memory was 185.7 MB in the beginning and 388.2 MB in the end (delta: -202.5 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. [2020-09-24 20:12:38,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 818.68 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 99.7 MB in the beginning and 175.1 MB in the end (delta: -75.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.68 ms. Allocated memory is still 205.0 MB. Free memory was 175.1 MB in the beginning and 171.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1269.83 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 171.0 MB in the beginning and 187.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28030.01 ms. Allocated memory was 238.0 MB in the beginning and 562.0 MB in the end (delta: 324.0 MB). Free memory was 185.7 MB in the beginning and 388.2 MB in the end (delta: -202.5 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 661 SDtfs, 994 SDslu, 1626 SDs, 0 SdLazy, 2743 SolverSat, 279 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 117 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 651 NumberOfCodeBlocks, 651 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 214104 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...