/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=DEEPEST --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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:42:52,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:42:52,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:42:52,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:42:52,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:42:52,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:42:52,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:42:52,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:42:52,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:42:52,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:42:52,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:42:52,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:42:52,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:42:52,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:42:52,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:42:52,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:42:52,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:42:52,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:42:52,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:42:52,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:42:52,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:42:52,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:42:52,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:42:52,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:42:52,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:42:52,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:42:52,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:42:52,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:42:52,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:42:52,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:42:52,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:42:52,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:42:52,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:42:52,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:42:52,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:42:52,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:42:52,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:42:52,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:42:52,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:42:52,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:42:52,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:42:52,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:42:52,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:42:52,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:42:52,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:42:52,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:42:52,544 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:42:52,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:42:52,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:42:52,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:42:52,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:42:52,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:42:52,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:42:52,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:42:52,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:42:52,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:42:52,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:42:52,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:42:52,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:42:52,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:42:52,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:42:52,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:42:52,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:42:52,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:52,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:42:52,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:42:52,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:42:52,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:42:52,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:42:52,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:42:52,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:42:52,551 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:42:53,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:42:53,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:42:53,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:42:53,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:42:53,091 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:42:53,092 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-25 00:42:53,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9379d4a24/e90cace39c024d7f8151fa370222015a/FLAG9b4a47373 [2020-09-25 00:42:53,773 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:42:53,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-25 00:42:53,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9379d4a24/e90cace39c024d7f8151fa370222015a/FLAG9b4a47373 [2020-09-25 00:42:54,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9379d4a24/e90cace39c024d7f8151fa370222015a [2020-09-25 00:42:54,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:42:54,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:42:54,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:54,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:42:54,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:42:54,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625d319a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54, skipping insertion in model container [2020-09-25 00:42:54,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:42:54,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:42:54,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:54,697 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:42:54,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:54,831 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:42:54,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54 WrapperNode [2020-09-25 00:42:54,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:54,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:42:54,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:42:54,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:42:54,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... [2020-09-25 00:42:54,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:42:54,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:42:54,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:42:54,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:42:54,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:42:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:42:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:42:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:42:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:42:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:42:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:42:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:42:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:42:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:42:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:42:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:42:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:42:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:42:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:42:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:42:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:42:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:42:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:42:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:42:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:42:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:42:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:42:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:42:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:42:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:42:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:42:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:42:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:42:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:42:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:42:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:42:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:42:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:42:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:42:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:42:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:42:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:42:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:42:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:42:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:42:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:42:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:42:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:42:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:42:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:42:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:42:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:42:55,037 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:42:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:42:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:42:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:42:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:42:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:42:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:42:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:42:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:42:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:42:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:42:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:42:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:42:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:42:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:42:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:42:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:42:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:42:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:42:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:42:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:42:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:42:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:42:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:42:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:42:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:42:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:42:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:42:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:42:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:42:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:42:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:42:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:42:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:42:56,202 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:42:56,203 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:42:56,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:56 BoogieIcfgContainer [2020-09-25 00:42:56,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:42:56,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:42:56,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:42:56,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:42:56,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:42:54" (1/3) ... [2020-09-25 00:42:56,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0f0a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:56, skipping insertion in model container [2020-09-25 00:42:56,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:54" (2/3) ... [2020-09-25 00:42:56,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0f0a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:56, skipping insertion in model container [2020-09-25 00:42:56,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:56" (3/3) ... [2020-09-25 00:42:56,221 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-09-25 00:42:56,235 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:42:56,247 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:42:56,272 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:42:56,309 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:42:56,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:42:56,310 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:42:56,310 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:42:56,310 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:42:56,310 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:42:56,311 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:42:56,311 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:42:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 00:42:56,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:42:56,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:56,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:56,365 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:56,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:56,374 INFO L82 PathProgramCache]: Analyzing trace with hash 196536289, now seen corresponding path program 1 times [2020-09-25 00:42:56,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:56,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045244505] [2020-09-25 00:42:56,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:56,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:58,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:01,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:01,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:43:01,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:43:01,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 00:43:01,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:43:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:01,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:43:02,327 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:02,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:02,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 00:43:02,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:02,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:02,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:02,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:02,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:02,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:43:02,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:02,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:02,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:02,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:43:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:02,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:02,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:43:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:02,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:02,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:02,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:43:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:02,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:02,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:02,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:02,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:02,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:02,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:02,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:02,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045244505] [2020-09-25 00:43:02,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:02,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:43:02,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144336685] [2020-09-25 00:43:02,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:43:02,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:02,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:43:02,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:43:02,768 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-09-25 00:43:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:03,992 INFO L93 Difference]: Finished difference Result 449 states and 536 transitions. [2020-09-25 00:43:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:43:03,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:43:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:04,017 INFO L225 Difference]: With dead ends: 449 [2020-09-25 00:43:04,017 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 00:43:04,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:43:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 00:43:04,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241. [2020-09-25 00:43:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-25 00:43:04,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2020-09-25 00:43:04,128 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 153 [2020-09-25 00:43:04,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:04,129 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2020-09-25 00:43:04,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:43:04,129 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2020-09-25 00:43:04,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:43:04,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:04,135 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] [2020-09-25 00:43:04,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:43:04,136 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:04,137 INFO L82 PathProgramCache]: Analyzing trace with hash 738994654, now seen corresponding path program 1 times [2020-09-25 00:43:04,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:04,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280235682] [2020-09-25 00:43:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:43:09,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:43:09,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:43:09,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:09,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:43:09,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:43:09,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:09,569 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:09,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:09,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 00:43:09,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:09,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:09,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:09,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:09,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:09,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:09,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:09,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:09,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:09,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:43:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:09,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:43:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:09,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:09,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:09,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:43:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:09,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:09,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:09,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:09,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:09,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:09,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:09,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:09,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280235682] [2020-09-25 00:43:09,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:09,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:43:09,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519514270] [2020-09-25 00:43:09,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:43:09,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:09,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:43:09,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:43:09,826 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 4 states. [2020-09-25 00:43:10,499 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:43:11,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:11,455 INFO L93 Difference]: Finished difference Result 360 states and 403 transitions. [2020-09-25 00:43:11,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:43:11,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:43:11,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:11,461 INFO L225 Difference]: With dead ends: 360 [2020-09-25 00:43:11,462 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 00:43:11,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:43:11,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 00:43:11,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2020-09-25 00:43:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 00:43:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-25 00:43:11,507 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 154 [2020-09-25 00:43:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:11,508 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-25 00:43:11,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:43:11,508 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-25 00:43:11,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 00:43:11,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:11,511 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] [2020-09-25 00:43:11,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:43:11,511 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:11,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:11,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1017850899, now seen corresponding path program 1 times [2020-09-25 00:43:11,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:11,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386496645] [2020-09-25 00:43:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:11,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:12,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:14,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:14,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 00:43:14,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:43:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3333 [2020-09-25 00:43:14,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:43:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 00:43:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:43:14,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:15,318 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:15,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:15,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 00:43:15,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:15,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:15,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:43:15,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:15,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:15,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:15,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:15,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:15,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:15,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:15,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:15,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:43:15,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:15,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:15,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:15,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:15,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:15,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:43:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:15,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:15,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:15,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:43:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:15,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:43:15,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:43:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:15,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:15,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 00:43:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:15,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:15,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:15,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:15,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:15,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:15,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:15,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:15,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386496645] [2020-09-25 00:43:15,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:15,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:43:15,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343241976] [2020-09-25 00:43:15,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:43:15,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:15,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:43:15,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:43:15,893 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 8 states. [2020-09-25 00:43:16,432 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:18,320 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:18,645 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:43:18,975 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:19,297 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:19,604 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:43:19,964 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:20,272 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:20,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:20,937 INFO L93 Difference]: Finished difference Result 501 states and 581 transitions. [2020-09-25 00:43:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:43:20,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 00:43:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:20,949 INFO L225 Difference]: With dead ends: 501 [2020-09-25 00:43:20,951 INFO L226 Difference]: Without dead ends: 380 [2020-09-25 00:43:20,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:43:20,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-25 00:43:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 340. [2020-09-25 00:43:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-25 00:43:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 375 transitions. [2020-09-25 00:43:21,036 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 375 transitions. Word has length 163 [2020-09-25 00:43:21,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:21,037 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 375 transitions. [2020-09-25 00:43:21,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:43:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 375 transitions. [2020-09-25 00:43:21,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 00:43:21,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:21,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:21,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:43:21,041 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:21,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:21,042 INFO L82 PathProgramCache]: Analyzing trace with hash 217466552, now seen corresponding path program 1 times [2020-09-25 00:43:21,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:21,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045782941] [2020-09-25 00:43:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:21,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 00:43:22,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-25 00:43:22,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:43:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 00:43:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 00:43:22,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:22,451 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:22,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:22,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 00:43:22,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:22,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 00:43:22,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:22,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:22,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:22,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:22,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:22,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:22,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:22,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:22,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:22,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:43:22,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:22,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:22,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:22,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:22,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:22,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:22,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:43:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:43:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:43:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:43:22,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:22,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 00:43:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:22,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:22,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:22,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 00:43:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:22,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:22,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:22,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 00:43:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:22,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:22,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:22,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:22,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:22,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:22,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:22,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045782941] [2020-09-25 00:43:22,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:22,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:43:22,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191763415] [2020-09-25 00:43:22,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:43:22,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:22,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:43:22,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:43:22,938 INFO L87 Difference]: Start difference. First operand 340 states and 375 transitions. Second operand 5 states. [2020-09-25 00:43:23,470 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:25,363 INFO L93 Difference]: Finished difference Result 906 states and 1070 transitions. [2020-09-25 00:43:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:43:25,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 00:43:25,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:25,372 INFO L225 Difference]: With dead ends: 906 [2020-09-25 00:43:25,372 INFO L226 Difference]: Without dead ends: 676 [2020-09-25 00:43:25,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:43:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-09-25 00:43:25,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 571. [2020-09-25 00:43:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-09-25 00:43:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 647 transitions. [2020-09-25 00:43:25,465 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 647 transitions. Word has length 168 [2020-09-25 00:43:25,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:25,465 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 647 transitions. [2020-09-25 00:43:25,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:43:25,466 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 647 transitions. [2020-09-25 00:43:25,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 00:43:25,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:25,470 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] [2020-09-25 00:43:25,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:43:25,470 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:25,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1541185143, now seen corresponding path program 1 times [2020-09-25 00:43:25,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:25,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559773989] [2020-09-25 00:43:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:43:25,534 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:43:25,534 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:43:25,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:43:25,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:43:25 BoogieIcfgContainer [2020-09-25 00:43:25,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:43:25,573 INFO L168 Benchmark]: Toolchain (without parser) took 31468.64 ms. Allocated memory was 140.5 MB in the beginning and 585.1 MB in the end (delta: 444.6 MB). Free memory was 101.4 MB in the beginning and 367.3 MB in the end (delta: -265.9 MB). Peak memory consumption was 178.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:25,574 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:43:25,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.60 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 100.7 MB in the beginning and 168.8 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:25,576 INFO L168 Benchmark]: Boogie Preprocessor took 100.74 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 164.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:25,577 INFO L168 Benchmark]: RCFGBuilder took 1275.02 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.3 MB in the beginning and 171.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:25,578 INFO L168 Benchmark]: TraceAbstraction took 29359.00 ms. Allocated memory was 235.4 MB in the beginning and 585.1 MB in the end (delta: 349.7 MB). Free memory was 171.3 MB in the beginning and 367.3 MB in the end (delta: -196.0 MB). Peak memory consumption was 153.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:25,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 724.60 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 100.7 MB in the beginning and 168.8 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.74 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 164.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1275.02 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.3 MB in the beginning and 171.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29359.00 ms. Allocated memory was 235.4 MB in the beginning and 585.1 MB in the end (delta: 349.7 MB). Free memory was 171.3 MB in the beginning and 367.3 MB in the end (delta: -196.0 MB). Peak memory consumption was 153.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; [L917] int retValue_acc ; [L918] int tmp ; [L922] FCALL select_helpers() [L923] FCALL select_features() [L924] CALL, EXPR valid_product() [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); [L924] RET, EXPR valid_product() [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) [L928] FCALL setup() [L929] CALL runTest() [L911] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L137] CALL processEnvironment() [L157] int tmp ; [L160] COND FALSE !(\read(pumpRunning)) [L175] FCALL processEnvironment__wrappee__base() [L137] RET processEnvironment() [L143] CALL __utac_acc__Specification3_spec__1() [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L315] CALL, EXPR isMethaneLevelCritical() [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); [L315] RET, EXPR isMethaneLevelCritical() [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L321] CALL, EXPR getWaterLevel() [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); [L321] RET, EXPR getWaterLevel() [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L325] CALL, EXPR isPumpRunning() [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); [L325] RET, EXPR isPumpRunning() [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) [L331] CALL __automaton_fail() [L346] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 896 SDtfs, 998 SDslu, 794 SDs, 0 SdLazy, 1858 SolverSat, 305 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 220 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 250444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...