/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:08:21,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:08:21,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:08:21,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:08:21,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:08:21,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:08:21,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:08:21,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:08:21,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:08:21,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:08:21,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:08:21,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:08:21,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:08:21,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:08:21,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:08:21,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:08:21,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:08:21,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:08:21,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:08:21,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:08:21,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:08:21,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:08:21,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:08:21,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:08:21,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:08:21,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:08:21,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:08:21,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:08:21,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:08:21,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:08:21,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:08:21,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:08:21,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:08:21,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:08:21,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:08:21,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:08:21,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:08:21,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:08:21,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:08:21,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:08:21,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:08:21,435 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 19:08:21,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:08:21,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:08:21,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:08:21,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:08:21,463 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:08:21,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:08:21,466 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:08:21,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:08:21,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:08:21,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:08:21,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:08:21,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:08:21,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:08:21,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:08:21,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:08:21,468 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:08:21,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:08:21,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:08:21,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:08:21,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:08:21,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:08:21,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:08:21,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:08:21,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:08:21,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:08:21,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:08:21,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:08:21,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:08:21,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:08:21,472 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:08:21,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:08:21,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:08:21,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:08:21,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:08:21,973 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:08:21,974 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-24 19:08:22,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cc375f54/d8f7a17fad074e7094f7311d3f14aae6/FLAGfa5f59a94 [2020-09-24 19:08:22,696 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:08:22,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-24 19:08:22,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cc375f54/d8f7a17fad074e7094f7311d3f14aae6/FLAGfa5f59a94 [2020-09-24 19:08:22,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cc375f54/d8f7a17fad074e7094f7311d3f14aae6 [2020-09-24 19:08:22,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:08:22,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:08:22,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:22,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:08:22,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:08:22,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:22" (1/1) ... [2020-09-24 19:08:22,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:22, skipping insertion in model container [2020-09-24 19:08:22,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:22" (1/1) ... [2020-09-24 19:08:22,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:08:23,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:08:23,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:23,602 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:08:23,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:23,741 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:08:23,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23 WrapperNode [2020-09-24 19:08:23,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:23,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:08:23,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:08:23,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:08:23,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (1/1) ... [2020-09-24 19:08:23,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (1/1) ... [2020-09-24 19:08:23,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (1/1) ... [2020-09-24 19:08:23,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (1/1) ... [2020-09-24 19:08:23,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (1/1) ... [2020-09-24 19:08:23,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (1/1) ... [2020-09-24 19:08:23,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (1/1) ... [2020-09-24 19:08:23,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:08:23,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:08:23,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:08:23,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:08:23,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (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 19:08:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:08:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:08:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:23,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:08:23,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:08:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:08:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:08:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:08:23,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:08:23,961 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:08:23,961 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:08:23,961 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:08:23,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:08:23,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:08:23,962 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:08:23,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:08:23,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:08:23,964 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:08:23,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:08:23,964 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:08:23,965 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:08:23,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:08:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:08:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:08:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:08:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:08:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:08:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:08:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:08:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:08:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:08:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:08:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:08:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:08:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:08:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:08:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:08:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:08:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:08:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:08:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:08:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:08:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:08:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:08:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:08:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:08:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:08:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:08:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:08:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:08:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:08:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:08:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:08:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:08:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:08:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:08:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:08:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:08:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:08:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:08:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:08:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:08:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:08:23,976 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:08:23,976 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:08:23,976 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:08:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:08:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:08:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:08:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:08:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:08:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:08:23,977 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:08:23,978 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:08:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:08:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:08:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:08:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:08:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:08:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:08:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:08:25,207 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:08:25,208 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:08:25,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:25 BoogieIcfgContainer [2020-09-24 19:08:25,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:08:25,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:08:25,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:08:25,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:08:25,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:08:22" (1/3) ... [2020-09-24 19:08:25,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87cbd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:25, skipping insertion in model container [2020-09-24 19:08:25,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:23" (2/3) ... [2020-09-24 19:08:25,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87cbd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:25, skipping insertion in model container [2020-09-24 19:08:25,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:25" (3/3) ... [2020-09-24 19:08:25,226 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-09-24 19:08:25,239 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:08:25,253 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:08:25,278 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:08:25,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:08:25,317 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:08:25,317 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:08:25,317 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:08:25,317 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:08:25,318 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:08:25,318 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:08:25,318 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:08:25,349 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 19:08:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 19:08:25,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:25,372 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 19:08:25,372 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:25,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:25,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times [2020-09-24 19:08:25,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:25,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178133479] [2020-09-24 19:08:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:25,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:26,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:26,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:26,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:26,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 19:08:26,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:08:26,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-09-24 19:08:26,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:08:26,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:26,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:08:27,310 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:27,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:27,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 19:08:27,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:27,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:27,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:27,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:27,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:27,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:27,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:27,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:08:27,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:27,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:27,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:27,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:27,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:08:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:27,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:27,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:27,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:27,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:08:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:27,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:27,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:27,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:08:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:27,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:27,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:27,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:27,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:27,661 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 19:08:27,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178133479] [2020-09-24 19:08:27,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:27,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:08:27,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64931463] [2020-09-24 19:08:27,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:08:27,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:27,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:08:27,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:08:27,701 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-09-24 19:08:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:29,080 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-09-24 19:08:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:08:29,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 19:08:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:29,104 INFO L225 Difference]: With dead ends: 477 [2020-09-24 19:08:29,104 INFO L226 Difference]: Without dead ends: 296 [2020-09-24 19:08:29,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:08:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-24 19:08:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-24 19:08:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 19:08:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-24 19:08:29,225 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 153 [2020-09-24 19:08:29,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:29,227 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-24 19:08:29,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:08:29,227 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-24 19:08:29,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 19:08:29,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:29,235 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] [2020-09-24 19:08:29,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:08:29,235 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:29,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:29,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1820086342, now seen corresponding path program 1 times [2020-09-24 19:08:29,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:29,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593818739] [2020-09-24 19:08:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:29,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:30,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:30,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:30,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:08:30,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:08:30,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-09-24 19:08:30,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:08:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 19:08:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:30,682 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:30,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:30,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:31,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-09-24 19:08:31,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:31,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:31,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:08:31,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:31,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:31,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:08:31,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:31,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:31,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:31,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:31,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:31,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:31,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:31,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:31,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:08:31,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:31,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:31,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:31,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:31,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:08:31,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:31,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:31,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 19:08:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:31,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:31,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:31,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:08:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:31,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:31,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:31,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:31,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:08:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:31,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:31,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:31,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:31,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:31,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:31,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:31,240 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 19:08:31,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593818739] [2020-09-24 19:08:31,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:31,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:08:31,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55171095] [2020-09-24 19:08:31,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:08:31,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:31,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:08:31,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:08:31,253 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 4 states. [2020-09-24 19:08:31,808 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:32,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:32,856 INFO L93 Difference]: Finished difference Result 441 states and 511 transitions. [2020-09-24 19:08:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:08:32,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 19:08:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:32,863 INFO L225 Difference]: With dead ends: 441 [2020-09-24 19:08:32,864 INFO L226 Difference]: Without dead ends: 296 [2020-09-24 19:08:32,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:08:32,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-24 19:08:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-24 19:08:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 19:08:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2020-09-24 19:08:32,922 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 154 [2020-09-24 19:08:32,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:32,923 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2020-09-24 19:08:32,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:08:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2020-09-24 19:08:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 19:08:32,933 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:32,933 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] [2020-09-24 19:08:32,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:08:32,934 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:32,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:32,935 INFO L82 PathProgramCache]: Analyzing trace with hash 515182839, now seen corresponding path program 1 times [2020-09-24 19:08:32,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:32,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200148373] [2020-09-24 19:08:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:33,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 19:08:34,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:08:34,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:08:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:08:34,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 19:08:34,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:34,440 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:34,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:34,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 19:08:34,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 19:08:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:34,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:34,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:08:34,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:34,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:34,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:34,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:34,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:34,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:08:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:08:34,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:08:34,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:34,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:08:34,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:08:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:08:34,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:34,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:34,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:08:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:34,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:08:34,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:08:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:34,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:34,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:34,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:34,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:08:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:34,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:08:34,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:08:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:34,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 19:08:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:34,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:34,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:34,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:34,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:34,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:34,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:34,948 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 19:08:34,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200148373] [2020-09-24 19:08:34,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:34,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:08:34,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500294673] [2020-09-24 19:08:34,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:08:34,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:34,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:08:34,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:08:34,951 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 9 states. [2020-09-24 19:08:35,520 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:37,830 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:38,217 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:38,569 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:38,943 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:39,237 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:39,723 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:40,025 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:40,944 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2020-09-24 19:08:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:08:40,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-24 19:08:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:40,951 INFO L225 Difference]: With dead ends: 649 [2020-09-24 19:08:40,952 INFO L226 Difference]: Without dead ends: 480 [2020-09-24 19:08:40,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:08:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-24 19:08:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 387. [2020-09-24 19:08:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-24 19:08:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 433 transitions. [2020-09-24 19:08:41,027 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 433 transitions. Word has length 176 [2020-09-24 19:08:41,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:41,028 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 433 transitions. [2020-09-24 19:08:41,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:08:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 433 transitions. [2020-09-24 19:08:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 19:08:41,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:41,033 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, 1, 1, 1, 1] [2020-09-24 19:08:41,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:08:41,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:41,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:41,034 INFO L82 PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times [2020-09-24 19:08:41,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:41,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221327540] [2020-09-24 19:08:41,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:08:41,107 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:08:41,108 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:08:41,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:08:41,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:08:41 BoogieIcfgContainer [2020-09-24 19:08:41,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:08:41,143 INFO L168 Benchmark]: Toolchain (without parser) took 18186.20 ms. Allocated memory was 138.9 MB in the beginning and 546.8 MB in the end (delta: 407.9 MB). Free memory was 101.3 MB in the beginning and 418.8 MB in the end (delta: -317.5 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:41,144 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:08:41,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.58 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 171.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:41,146 INFO L168 Benchmark]: Boogie Preprocessor took 100.88 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:41,147 INFO L168 Benchmark]: RCFGBuilder took 1371.97 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 177.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:41,148 INFO L168 Benchmark]: TraceAbstraction took 15924.18 ms. Allocated memory was 234.4 MB in the beginning and 546.8 MB in the end (delta: 312.5 MB). Free memory was 177.4 MB in the beginning and 418.8 MB in the end (delta: -241.4 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:41,152 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.58 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 171.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.88 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1371.97 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 167.0 MB in the beginning and 177.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15924.18 ms. Allocated memory was 234.4 MB in the beginning and 546.8 MB in the end (delta: 312.5 MB). Free memory was 177.4 MB in the beginning and 418.8 MB in the end (delta: -241.4 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int pumpRunning = 0; [L416] int systemActive = 1; [L672] int waterLevel = 1; [L673] int methaneLevelCritical = 0; [L761] int cleanupTimeShifts = 4; [L837] int retValue_acc ; [L838] int tmp ; [L842] FCALL select_helpers() [L843] FCALL select_features() [L844] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L844] RET, EXPR valid_product() [L844] tmp = valid_product() [L846] COND TRUE \read(tmp) [L848] FCALL setup() [L849] CALL runTest() [L828] CALL test() [L607] int splverifierCounter ; [L608] int tmp ; [L609] int tmp___0 ; [L610] int tmp___1 ; [L611] int tmp___2 ; [L614] splverifierCounter = 0 [L616] COND TRUE 1 [L618] COND TRUE splverifierCounter < 4 [L624] tmp = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp) [L628] CALL waterRise() [L690] COND TRUE waterLevel < 2 [L691] waterLevel = waterLevel + 1 [L628] RET waterRise() [L634] tmp___0 = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp___0)) [L644] tmp___2 = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp___2) [L659] CALL timeShift() [L423] COND FALSE !(\read(pumpRunning)) [L430] COND TRUE \read(systemActive) [L432] CALL processEnvironment() [L478] int tmp ; [L481] COND FALSE !(\read(pumpRunning)) [L496] CALL processEnvironment__wrappee__lowWaterSensor() [L452] int tmp ; [L455] COND FALSE !(\read(pumpRunning)) [L470] FCALL processEnvironment__wrappee__base() [L496] RET processEnvironment__wrappee__lowWaterSensor() [L432] RET processEnvironment() [L438] CALL __utac_acc__Specification3_spec__1() [L861] int tmp ; [L862] int tmp___0 ; [L863] int tmp___1 ; [L867] CALL, EXPR isMethaneLevelCritical() [L711] int retValue_acc ; [L714] retValue_acc = methaneLevelCritical [L715] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L873] CALL, EXPR getWaterLevel() [L743] int retValue_acc ; [L746] retValue_acc = waterLevel [L747] return (retValue_acc); [L873] RET, EXPR getWaterLevel() [L873] tmp___0 = getWaterLevel() [L875] COND TRUE tmp___0 == 2 [L877] CALL, EXPR isPumpRunning() [L530] int retValue_acc ; [L533] retValue_acc = pumpRunning [L534] return (retValue_acc); [L877] RET, EXPR isPumpRunning() [L877] tmp___1 = isPumpRunning() [L879] COND FALSE !(\read(tmp___1)) [L883] CALL __automaton_fail() [L598] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 742 SDtfs, 936 SDslu, 668 SDs, 0 SdLazy, 1753 SolverSat, 321 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=387occurred 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: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 175 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 195770 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...