/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:06:38,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:06:38,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:06:38,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:06:38,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:06:38,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:06:38,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:06:38,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:06:38,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:06:38,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:06:38,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:06:38,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:06:38,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:06:38,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:06:38,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:06:38,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:06:38,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:06:38,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:06:38,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:06:38,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:06:38,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:06:38,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:06:38,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:06:38,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:06:38,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:06:38,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:06:38,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:06:38,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:06:38,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:06:38,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:06:38,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:06:38,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:06:38,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:06:38,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:06:38,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:06:38,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:06:38,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:06:38,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:06:38,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:06:38,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:06:38,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:06:38,509 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 12:06:38,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:06:38,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:06:38,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:06:38,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:06:38,556 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:06:38,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:06:38,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:06:38,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:06:38,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:06:38,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:06:38,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:06:38,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:06:38,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:06:38,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:06:38,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:06:38,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:06:38,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:06:38,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:06:38,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:06:38,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:06:38,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:06:38,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:06:38,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:06:38,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:06:38,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:06:38,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:06:38,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:06:38,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:06:38,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:06:38,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:06:39,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:06:39,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:06:39,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:06:39,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:06:39,050 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:06:39,052 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-25 12:06:39,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21d995f24/432c92a81ee6478181aa1eff17409824/FLAG4814bf1e9 [2020-09-25 12:06:39,839 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:06:39,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-25 12:06:39,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21d995f24/432c92a81ee6478181aa1eff17409824/FLAG4814bf1e9 [2020-09-25 12:06:40,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21d995f24/432c92a81ee6478181aa1eff17409824 [2020-09-25 12:06:40,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:06:40,054 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:06:40,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:40,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:06:40,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:06:40,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40, skipping insertion in model container [2020-09-25 12:06:40,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:06:40,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:06:40,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:40,676 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:06:40,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:40,805 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:06:40,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40 WrapperNode [2020-09-25 12:06:40,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:40,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:06:40,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:06:40,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:06:40,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (1/1) ... [2020-09-25 12:06:40,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:06:40,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:06:40,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:06:40,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:06:40,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (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 12:06:41,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:06:41,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:06:41,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:41,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:41,026 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:06:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:06:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:06:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:06:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:06:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:06:41,028 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:06:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:06:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:06:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:06:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:06:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:06:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:06:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:06:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:06:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:06:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 12:06:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:41,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:06:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:06:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:06:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:06:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:06:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:06:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:06:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:06:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:06:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:06:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:06:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:06:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 12:06:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:06:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:06:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:06:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:06:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:06:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:06:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:06:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:06:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:06:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:06:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:06:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:06:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:06:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:06:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:06:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:06:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:06:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:06:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:06:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:06:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:06:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:06:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:06:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:06:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:06:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:06:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 12:06:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:06:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:06:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:06:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:06:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:06:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:06:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:06:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:06:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:06:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:06:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:06:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:06:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:06:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:06:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 12:06:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:06:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:06:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:06:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:06:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:06:42,251 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:06:42,252 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:06:42,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:42 BoogieIcfgContainer [2020-09-25 12:06:42,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:06:42,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:06:42,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:06:42,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:06:42,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:06:40" (1/3) ... [2020-09-25 12:06:42,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f25feee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:42, skipping insertion in model container [2020-09-25 12:06:42,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:40" (2/3) ... [2020-09-25 12:06:42,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f25feee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:42, skipping insertion in model container [2020-09-25 12:06:42,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:42" (3/3) ... [2020-09-25 12:06:42,270 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2020-09-25 12:06:42,282 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:06:42,294 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:06:42,318 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:06:42,359 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:06:42,360 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:06:42,360 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:06:42,360 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:06:42,360 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:06:42,361 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:06:42,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:06:42,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:06:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-09-25 12:06:42,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:06:42,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:42,441 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] [2020-09-25 12:06:42,444 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:42,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:42,456 INFO L82 PathProgramCache]: Analyzing trace with hash -29194710, now seen corresponding path program 1 times [2020-09-25 12:06:42,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:42,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097552301] [2020-09-25 12:06:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:43,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:43,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:44,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:47,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:47,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:06:47,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 12:06:47,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:47,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:06:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 12:06:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:06:47,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 12:06:48,482 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:48,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:48,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:48,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:48,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-09-25 12:06:48,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:48,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:48,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:06:48,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:49,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:49,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:49,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:49,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:49,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:49,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:49,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:49,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:49,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:49,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:49,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:49,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:49,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:49,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:49,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:49,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:49,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:49,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:49,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:49,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:49,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:06:49,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:49,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:49,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:49,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:49,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:49,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:49,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:49,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:49,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:49,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:49,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:06:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:49,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:49,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:49,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:49,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:49,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:49,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:49,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:49,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:49,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:49,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:49,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:49,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:06:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:49,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:49,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:49,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:49,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:49,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:49,193 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 12:06:49,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097552301] [2020-09-25 12:06:49,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:49,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:06:49,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372964201] [2020-09-25 12:06:49,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:06:49,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:49,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:06:49,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:06:49,242 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 5 states. [2020-09-25 12:06:49,999 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:50,916 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:06:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:53,387 INFO L93 Difference]: Finished difference Result 782 states and 975 transitions. [2020-09-25 12:06:53,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:06:53,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 12:06:53,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:53,417 INFO L225 Difference]: With dead ends: 782 [2020-09-25 12:06:53,418 INFO L226 Difference]: Without dead ends: 569 [2020-09-25 12:06:53,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:06:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-09-25 12:06:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 478. [2020-09-25 12:06:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-09-25 12:06:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 543 transitions. [2020-09-25 12:06:53,603 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 543 transitions. Word has length 142 [2020-09-25 12:06:53,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:53,604 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 543 transitions. [2020-09-25 12:06:53,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:06:53,604 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 543 transitions. [2020-09-25 12:06:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:06:53,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:53,609 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] [2020-09-25 12:06:53,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:06:53,610 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:53,610 INFO L82 PathProgramCache]: Analyzing trace with hash 997847038, now seen corresponding path program 1 times [2020-09-25 12:06:53,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:53,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158151016] [2020-09-25 12:06:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:53,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:53,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:55,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:55,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:06:58,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:06:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 12:06:58,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:06:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:06:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 12:06:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,983 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:58,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:59,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 12:06:59,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:06:59,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:59,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:59,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:59,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:59,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:59,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:59,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:59,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:59,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:06:59,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:59,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:59,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:59,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:59,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:59,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:59,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 12:06:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:06:59,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:59,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:59,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:06:59,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:59,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:59,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:59,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:59,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:59,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:59,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:59,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:59,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:06:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:59,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:06:59,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:06:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:59,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:59,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:06:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:59,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:59,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:59,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:59,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:59,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:59,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:59,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:59,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:59,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:59,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:59,432 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 12:06:59,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158151016] [2020-09-25 12:06:59,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:59,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:06:59,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870610352] [2020-09-25 12:06:59,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:06:59,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:59,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:06:59,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:06:59,439 INFO L87 Difference]: Start difference. First operand 478 states and 543 transitions. Second operand 9 states. [2020-09-25 12:06:59,943 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:01,729 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:02,069 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:02,484 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:02,823 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:03,137 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:03,443 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:03,751 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:05,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:05,371 INFO L93 Difference]: Finished difference Result 1435 states and 1855 transitions. [2020-09-25 12:07:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:07:05,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2020-09-25 12:07:05,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:05,385 INFO L225 Difference]: With dead ends: 1435 [2020-09-25 12:07:05,385 INFO L226 Difference]: Without dead ends: 1067 [2020-09-25 12:07:05,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:07:05,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2020-09-25 12:07:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 829. [2020-09-25 12:07:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-09-25 12:07:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 985 transitions. [2020-09-25 12:07:05,549 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 985 transitions. Word has length 156 [2020-09-25 12:07:05,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:05,550 INFO L479 AbstractCegarLoop]: Abstraction has 829 states and 985 transitions. [2020-09-25 12:07:05,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:07:05,551 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 985 transitions. [2020-09-25 12:07:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 12:07:05,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:07:05,555 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] [2020-09-25 12:07:05,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:07:05,556 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:07:05,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:07:05,556 INFO L82 PathProgramCache]: Analyzing trace with hash -101785791, now seen corresponding path program 1 times [2020-09-25 12:07:05,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:07:05,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815525435] [2020-09-25 12:07:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:07:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:05,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:06,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:06,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:10,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:10,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 12:07:10,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:07:10,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 12:07:10,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:11,046 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:11,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:07:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:07:11,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:07:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:11,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:07:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:07:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:07:11,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:11,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:07:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:11,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:11,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:07:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:07:11,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:07:11,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:07:11,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:11,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:07:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:07:11,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:07:11,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:07:11,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 12:07:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:07:11,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:07:11,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:07:11,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:07:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:07:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:07:11,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:07:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:07:11,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:07:11,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:07:11,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:07:11,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:07:11,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:07:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:11,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 12:07:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:07:11,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 12:07:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:07:11,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:07:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,721 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 12:07:11,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815525435] [2020-09-25 12:07:11,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:07:11,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 12:07:11,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607681651] [2020-09-25 12:07:11,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:07:11,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:07:11,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:07:11,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:07:11,726 INFO L87 Difference]: Start difference. First operand 829 states and 985 transitions. Second operand 11 states. [2020-09-25 12:07:12,342 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:13,968 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:14,316 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:07:14,695 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:15,058 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 12:07:15,376 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:07:15,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:15,872 INFO L93 Difference]: Finished difference Result 1366 states and 1717 transitions. [2020-09-25 12:07:15,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:07:15,873 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-09-25 12:07:15,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:15,874 INFO L225 Difference]: With dead ends: 1366 [2020-09-25 12:07:15,875 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:07:15,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:07:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:07:15,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:07:15,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:07:15,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:07:15,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-09-25 12:07:15,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:15,890 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:07:15,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:07:15,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:07:15,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:07:15,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:07:15,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:07:16,137 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:16,312 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:16,478 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:16,649 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:16,815 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:16,931 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 7 [2020-09-25 12:07:17,096 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:17,263 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:17,428 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:17,588 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:17,751 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:18,054 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 7 [2020-09-25 12:07:18,209 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:18,370 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:18,530 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:18,687 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:18,994 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 7 [2020-09-25 12:07:19,320 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:19,571 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 12:07:19,819 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 12:07:20,059 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:20,304 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:20,551 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 12:07:20,869 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:21,193 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:21,515 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:21,756 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:22,097 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:22,342 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 12:07:22,660 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:22,904 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:23,153 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 12:07:23,399 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 12:07:23,725 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:24,049 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:24,292 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:24,615 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:24,855 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:25,173 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-25 12:07:25,495 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-25 12:07:25,819 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-25 12:07:26,135 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-25 12:07:26,462 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-25 12:07:26,626 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:26,769 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:26,928 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:27,085 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:27,239 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:27,397 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:27,544 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:27,697 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:27,850 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:28,003 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:28,155 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:28,308 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:28,457 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:28,614 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:28,767 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:28,920 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:29,073 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:29,232 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:29,391 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:29,555 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:29,712 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:29,861 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:30,018 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:30,170 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:30,323 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:30,477 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:30,625 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:30,777 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:30,935 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:31,092 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:31,558 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 12:07:31,815 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 12:07:32,278 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 12:07:32,538 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 12:07:32,796 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 187 [2020-09-25 12:07:33,138 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191