/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:22:09,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:22:09,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:22:09,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:22:09,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:22:09,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:22:09,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:22:09,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:22:09,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:22:09,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:22:09,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:22:09,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:22:09,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:22:09,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:22:09,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:22:09,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:22:09,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:22:09,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:22:09,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:22:09,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:22:09,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:22:09,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:22:09,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:22:09,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:22:09,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:22:09,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:22:09,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:22:09,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:22:09,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:22:09,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:22:09,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:22:09,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:22:09,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:22:09,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:22:09,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:22:09,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:22:09,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:22:09,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:22:09,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:22:09,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:22:09,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:22:09,462 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 21:22:09,504 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:22:09,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:22:09,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:22:09,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:22:09,507 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:22:09,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:22:09,508 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:22:09,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:22:09,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:22:09,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:22:09,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:22:09,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:22:09,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:22:09,511 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:22:09,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:22:09,511 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:22:09,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:22:09,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:22:09,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:22:09,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:22:09,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:22:09,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:22:09,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:22:09,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:22:09,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:22:09,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:22:09,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:22:09,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:22:09,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:22:09,514 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:22:09,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:22:09,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:22:09,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:22:09,977 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:22:09,978 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:22:09,979 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-24 21:22:10,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fcbc6a32/bc22251a8c6049cb9a86cb766965e008/FLAG63b581de6 [2020-09-24 21:22:10,646 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:22:10,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-24 21:22:10,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fcbc6a32/bc22251a8c6049cb9a86cb766965e008/FLAG63b581de6 [2020-09-24 21:22:10,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fcbc6a32/bc22251a8c6049cb9a86cb766965e008 [2020-09-24 21:22:10,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:22:10,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:22:10,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:10,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:22:10,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:22:10,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:10" (1/1) ... [2020-09-24 21:22:10,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:10, skipping insertion in model container [2020-09-24 21:22:10,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:10" (1/1) ... [2020-09-24 21:22:10,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:22:10,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:22:11,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:11,506 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:22:11,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:11,638 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:22:11,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11 WrapperNode [2020-09-24 21:22:11,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:11,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:22:11,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:22:11,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:22:11,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (1/1) ... [2020-09-24 21:22:11,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (1/1) ... [2020-09-24 21:22:11,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (1/1) ... [2020-09-24 21:22:11,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (1/1) ... [2020-09-24 21:22:11,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (1/1) ... [2020-09-24 21:22:11,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (1/1) ... [2020-09-24 21:22:11,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (1/1) ... [2020-09-24 21:22:11,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:22:11,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:22:11,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:22:11,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:22:11,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (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 21:22:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:22:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:22:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:22:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:22:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:22:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:22:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:22:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:22:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:22:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:22:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:22:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:22:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:22:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:22:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:22:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:22:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:22:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:22:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:22:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:22:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:22:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:22:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:22:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:22:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:22:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:22:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:22:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:22:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:22:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:22:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:22:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:22:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:22:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:22:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:22:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:22:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:22:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:22:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:22:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:22:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:22:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:22:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:22:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:22:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:22:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:22:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:22:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:22:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:22:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:22:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:22:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:22:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:22:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:22:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:22:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:22:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:22:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:22:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:22:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:22:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:22:11,843 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:22:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:22:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:22:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:22:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:22:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:22:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:22:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:22:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:22:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:22:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:22:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:22:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:22:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:22:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:22:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:22:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:22:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:22:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:22:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:22:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:22:12,989 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:22:12,989 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:22:12,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:12 BoogieIcfgContainer [2020-09-24 21:22:12,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:22:12,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:22:12,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:22:13,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:22:13,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:22:10" (1/3) ... [2020-09-24 21:22:13,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b174d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:13, skipping insertion in model container [2020-09-24 21:22:13,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:11" (2/3) ... [2020-09-24 21:22:13,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b174d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:13, skipping insertion in model container [2020-09-24 21:22:13,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:12" (3/3) ... [2020-09-24 21:22:13,007 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-24 21:22:13,019 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:22:13,030 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:22:13,054 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:22:13,090 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:22:13,090 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:22:13,090 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:22:13,090 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:22:13,090 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:22:13,091 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:22:13,091 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:22:13,091 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:22:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-24 21:22:13,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 21:22:13,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:13,141 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 21:22:13,142 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:13,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:13,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-09-24 21:22:13,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:13,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519321611] [2020-09-24 21:22:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:13,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:13,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:18,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:18,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 21:22:18,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:18,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-24 21:22:18,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:22:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:22:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 21:22:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:22:19,275 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:19,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:19,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-24 21:22:19,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:19,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:22:19,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:19,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:19,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:19,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:19,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:19,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:19,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:19,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:19,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:19,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:19,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:22:19,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:19,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:19,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:19,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:19,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:19,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:19,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:19,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:19,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:19,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:22:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:19,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:19,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:19,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:19,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 21:22:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:19,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:22:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:19,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 21:22:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:19,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:19,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:19,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:19,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:19,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:19,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:19,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:19,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:19,892 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 21:22:19,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519321611] [2020-09-24 21:22:19,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:19,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:22:19,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618488058] [2020-09-24 21:22:19,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:22:19,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:19,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:22:19,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:22:19,937 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 8 states. [2020-09-24 21:22:20,738 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:22,766 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 21:22:23,118 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:22:23,746 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 192 [2020-09-24 21:22:24,092 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:24,542 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:22:24,892 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:25,228 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 21:22:25,509 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:27,251 INFO L93 Difference]: Finished difference Result 721 states and 886 transitions. [2020-09-24 21:22:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 21:22:27,253 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 21:22:27,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:27,276 INFO L225 Difference]: With dead ends: 721 [2020-09-24 21:22:27,276 INFO L226 Difference]: Without dead ends: 501 [2020-09-24 21:22:27,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:22:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-09-24 21:22:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 448. [2020-09-24 21:22:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-09-24 21:22:27,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 508 transitions. [2020-09-24 21:22:27,440 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 508 transitions. Word has length 153 [2020-09-24 21:22:27,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:27,442 INFO L479 AbstractCegarLoop]: Abstraction has 448 states and 508 transitions. [2020-09-24 21:22:27,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:22:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 508 transitions. [2020-09-24 21:22:27,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 21:22:27,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:27,449 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 21:22:27,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:22:27,449 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:27,450 INFO L82 PathProgramCache]: Analyzing trace with hash -669646176, now seen corresponding path program 1 times [2020-09-24 21:22:27,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:27,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605198671] [2020-09-24 21:22:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:27,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:27,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:27,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:32,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:32,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:22:32,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 21:22:32,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:22:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:22:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 21:22:32,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:32,854 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:32,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:32,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:33,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-24 21:22:33,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:22:33,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:33,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:33,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:33,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:33,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:33,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:33,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:22:33,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:33,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:33,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:33,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:33,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 21:22:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:22:33,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:33,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:22:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 21:22:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:33,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:33,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:33,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:22:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:33,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:33,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:33,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 21:22:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:33,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:33,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,329 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 21:22:33,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605198671] [2020-09-24 21:22:33,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:33,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:22:33,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275808134] [2020-09-24 21:22:33,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:22:33,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:33,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:22:33,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:22:33,336 INFO L87 Difference]: Start difference. First operand 448 states and 508 transitions. Second operand 5 states. [2020-09-24 21:22:33,831 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:36,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:36,013 INFO L93 Difference]: Finished difference Result 1037 states and 1283 transitions. [2020-09-24 21:22:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:22:36,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-24 21:22:36,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:36,025 INFO L225 Difference]: With dead ends: 1037 [2020-09-24 21:22:36,025 INFO L226 Difference]: Without dead ends: 699 [2020-09-24 21:22:36,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:22:36,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-09-24 21:22:36,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 637. [2020-09-24 21:22:36,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2020-09-24 21:22:36,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 741 transitions. [2020-09-24 21:22:36,125 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 741 transitions. Word has length 159 [2020-09-24 21:22:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:36,126 INFO L479 AbstractCegarLoop]: Abstraction has 637 states and 741 transitions. [2020-09-24 21:22:36,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:22:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 741 transitions. [2020-09-24 21:22:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 21:22:36,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:36,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:36,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:22:36,130 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:36,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:36,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1535639593, now seen corresponding path program 1 times [2020-09-24 21:22:36,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:36,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057615722] [2020-09-24 21:22:36,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 21:22:36,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-24 21:22:36,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:36,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 21:22:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:22:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,780 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:36,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:36,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 21:22:36,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:36,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:36,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:36,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:36,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:36,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:36,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:36,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:36,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:36,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:22:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:22:36,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:36,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:22:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:22:36,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:36,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:22:36,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 21:22:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:36,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:36,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 21:22:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:36,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:36,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:36,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:36,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 21:22:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:36,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:36,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:36,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,015 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 21:22:37,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057615722] [2020-09-24 21:22:37,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:37,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:22:37,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284427188] [2020-09-24 21:22:37,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:22:37,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:37,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:22:37,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:22:37,018 INFO L87 Difference]: Start difference. First operand 637 states and 741 transitions. Second operand 6 states. [2020-09-24 21:22:37,547 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:40,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:40,535 INFO L93 Difference]: Finished difference Result 1869 states and 2324 transitions. [2020-09-24 21:22:40,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:22:40,535 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-24 21:22:40,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:40,554 INFO L225 Difference]: With dead ends: 1869 [2020-09-24 21:22:40,554 INFO L226 Difference]: Without dead ends: 1342 [2020-09-24 21:22:40,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:22:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2020-09-24 21:22:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1129. [2020-09-24 21:22:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-09-24 21:22:40,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1332 transitions. [2020-09-24 21:22:40,755 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1332 transitions. Word has length 172 [2020-09-24 21:22:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:40,756 INFO L479 AbstractCegarLoop]: Abstraction has 1129 states and 1332 transitions. [2020-09-24 21:22:40,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:22:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1332 transitions. [2020-09-24 21:22:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 21:22:40,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:40,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:40,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:22:40,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:40,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:40,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-09-24 21:22:40,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:40,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701037437] [2020-09-24 21:22:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:22:40,826 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:22:40,827 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:22:40,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:22:40,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:22:40 BoogieIcfgContainer [2020-09-24 21:22:40,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:22:40,858 INFO L168 Benchmark]: Toolchain (without parser) took 29955.08 ms. Allocated memory was 138.4 MB in the beginning and 638.1 MB in the end (delta: 499.6 MB). Free memory was 99.3 MB in the beginning and 298.6 MB in the end (delta: -199.3 MB). Peak memory consumption was 300.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:40,859 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 21:22:40,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.64 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 98.7 MB in the beginning and 170.0 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:40,861 INFO L168 Benchmark]: Boogie Preprocessor took 106.98 ms. Allocated memory is still 201.9 MB. Free memory was 170.0 MB in the beginning and 165.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:40,862 INFO L168 Benchmark]: RCFGBuilder took 1250.52 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 174.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:40,863 INFO L168 Benchmark]: TraceAbstraction took 27857.96 ms. Allocated memory was 232.8 MB in the beginning and 638.1 MB in the end (delta: 405.3 MB). Free memory was 173.1 MB in the beginning and 298.6 MB in the end (delta: -125.5 MB). Peak memory consumption was 279.7 MB. Max. memory is 7.1 GB. [2020-09-24 21:22:40,867 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.64 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 98.7 MB in the beginning and 170.0 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.98 ms. Allocated memory is still 201.9 MB. Free memory was 170.0 MB in the beginning and 165.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1250.52 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 174.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27857.96 ms. Allocated memory was 232.8 MB in the beginning and 638.1 MB in the end (delta: 405.3 MB). Free memory was 173.1 MB in the beginning and 298.6 MB in the end (delta: -125.5 MB). Peak memory consumption was 279.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 868 SDtfs, 1709 SDslu, 1024 SDs, 0 SdLazy, 2552 SolverSat, 655 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1129occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 328 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 661 NumberOfCodeBlocks, 661 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 481 ConstructedInterpolants, 0 QuantifiedInterpolants, 216582 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...