/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=0.4 --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_spec1_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:04:26,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:04:26,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:04:26,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:04:26,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:04:26,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:04:26,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:04:26,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:04:26,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:04:26,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:04:26,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:04:26,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:04:26,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:04:26,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:04:26,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:04:26,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:04:26,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:04:26,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:04:26,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:04:26,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:04:26,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:04:26,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:04:26,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:04:26,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:04:26,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:04:26,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:04:26,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:04:26,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:04:26,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:04:26,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:04:26,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:04:26,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:04:26,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:04:26,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:04:26,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:04:26,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:04:26,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:04:26,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:04:26,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:04:26,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:04:26,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:04:26,448 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 13:04:26,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:04:26,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:04:26,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:04:26,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:04:26,477 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:04:26,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:04:26,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:04:26,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:04:26,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:04:26,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:04:26,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:04:26,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:04:26,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:04:26,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:04:26,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:04:26,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:04:26,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:04:26,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:04:26,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:04:26,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:04:26,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:04:26,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:04:26,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:04:26,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:04:26,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:04:26,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:04:26,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:04:26,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:04:26,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:04:26,483 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:04:27,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:04:27,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:04:27,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:04:27,092 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:04:27,094 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:04:27,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product26.cil.c [2020-09-25 13:04:27,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fa8c8bc2/6dd8b621bd85433b98e5e007332c7851/FLAGb9879ff1f [2020-09-25 13:04:27,803 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:04:27,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product26.cil.c [2020-09-25 13:04:27,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fa8c8bc2/6dd8b621bd85433b98e5e007332c7851/FLAGb9879ff1f [2020-09-25 13:04:28,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6fa8c8bc2/6dd8b621bd85433b98e5e007332c7851 [2020-09-25 13:04:28,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:04:28,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:04:28,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:04:28,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:04:28,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:04:28,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28, skipping insertion in model container [2020-09-25 13:04:28,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:04:28,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:04:28,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:04:28,583 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:04:28,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:04:28,892 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:04:28,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28 WrapperNode [2020-09-25 13:04:28,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:04:28,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:04:28,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:04:28,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:04:28,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (1/1) ... [2020-09-25 13:04:28,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:04:28,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:04:28,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:04:28,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:04:28,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (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 13:04:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:04:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:04:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:04:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:04:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:04:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:04:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:04:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:04:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:04:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:04:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:04:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:04:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:04:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:04:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:04:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:04:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:04:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:04:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:04:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:04:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:04:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:04:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:04:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:04:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:04:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:04:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:04:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:04:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:04:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:04:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:04:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:04:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:04:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:04:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:04:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:04:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:04:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:04:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:04:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:04:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:04:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:04:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:04:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:04:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:04:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:04:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:04:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:04:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:04:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:04:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:04:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:04:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:04:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:04:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:04:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:04:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:04:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:04:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:04:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:04:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:04:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:04:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:04:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:04:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:04:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:04:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:04:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:04:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:04:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:04:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:04:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:04:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:04:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:04:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:04:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:04:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:04:30,281 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:04:30,282 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:04:30,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:04:30 BoogieIcfgContainer [2020-09-25 13:04:30,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:04:30,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:04:30,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:04:30,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:04:30,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:04:28" (1/3) ... [2020-09-25 13:04:30,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583295e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:04:30, skipping insertion in model container [2020-09-25 13:04:30,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:28" (2/3) ... [2020-09-25 13:04:30,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583295e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:04:30, skipping insertion in model container [2020-09-25 13:04:30,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:04:30" (3/3) ... [2020-09-25 13:04:30,299 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product26.cil.c [2020-09-25 13:04:30,311 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:04:30,323 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:04:30,347 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:04:30,382 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:04:30,382 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:04:30,382 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:04:30,382 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:04:30,383 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:04:30,383 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:04:30,383 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:04:30,383 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:04:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 13:04:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:04:30,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:30,433 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 13:04:30,434 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:30,442 INFO L82 PathProgramCache]: Analyzing trace with hash -919214790, now seen corresponding path program 1 times [2020-09-25 13:04:30,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:30,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922464851] [2020-09-25 13:04:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:30,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:31,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:32,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:33,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:35,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:35,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:04:35,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:04:35,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 13:04:35,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:35,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:35,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:04:35,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:04:35,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 13:04:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:04:36,265 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:36,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:36,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 13:04:36,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:04:36,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:36,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:36,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:36,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:36,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:36,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:36,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:36,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:36,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:04:36,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:36,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:36,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:36,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:04:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:36,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:36,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:36,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:04:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:36,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:36,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:36,797 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 13:04:36,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922464851] [2020-09-25 13:04:36,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:36,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:04:36,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678993488] [2020-09-25 13:04:36,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:04:36,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:36,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:04:36,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:04:36,833 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 4 states. [2020-09-25 13:04:37,457 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:38,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:04:38,549 INFO L93 Difference]: Finished difference Result 422 states and 503 transitions. [2020-09-25 13:04:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:04:38,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:04:38,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:04:38,577 INFO L225 Difference]: With dead ends: 422 [2020-09-25 13:04:38,577 INFO L226 Difference]: Without dead ends: 268 [2020-09-25 13:04:38,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:04:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-25 13:04:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-25 13:04:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 13:04:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 244 transitions. [2020-09-25 13:04:38,743 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 244 transitions. Word has length 142 [2020-09-25 13:04:38,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:04:38,744 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 244 transitions. [2020-09-25 13:04:38,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:04:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 244 transitions. [2020-09-25 13:04:38,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:04:38,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:38,750 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] [2020-09-25 13:04:38,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:04:38,750 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:38,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:38,751 INFO L82 PathProgramCache]: Analyzing trace with hash -819813427, now seen corresponding path program 1 times [2020-09-25 13:04:38,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:38,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784823105] [2020-09-25 13:04:38,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:38,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:39,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:39,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:40,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:43,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:43,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:04:43,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:04:43,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:04:43,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:43,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:04:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:04:43,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 13:04:43,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,273 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:44,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:44,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 13:04:44,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:44,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:04:44,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:44,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:44,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:44,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:44,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:44,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:44,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:44,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:44,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:04:44,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:44,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:04:44,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:44,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:44,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:44,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:44,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:04:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:04:44,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:44,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:04:44,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:04:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:44,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:44,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:04:44,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:04:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:44,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:04:44,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:04:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:44,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:44,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:04:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:44,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:44,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:44,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:44,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:44,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:44,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:44,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:44,794 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 13:04:44,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784823105] [2020-09-25 13:04:44,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:44,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:04:44,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133551496] [2020-09-25 13:04:44,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:04:44,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:44,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:04:44,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:04:44,800 INFO L87 Difference]: Start difference. First operand 228 states and 244 transitions. Second operand 9 states. [2020-09-25 13:04:45,331 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:46,682 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:47,061 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:47,454 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:47,840 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:04:48,199 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:48,855 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:49,154 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:49,518 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:50,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:04:50,718 INFO L93 Difference]: Finished difference Result 572 states and 701 transitions. [2020-09-25 13:04:50,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:04:50,725 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:04:50,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:04:50,732 INFO L225 Difference]: With dead ends: 572 [2020-09-25 13:04:50,733 INFO L226 Difference]: Without dead ends: 430 [2020-09-25 13:04:50,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:04:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-25 13:04:50,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 321. [2020-09-25 13:04:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 13:04:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 349 transitions. [2020-09-25 13:04:50,815 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 349 transitions. Word has length 151 [2020-09-25 13:04:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:04:50,816 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 349 transitions. [2020-09-25 13:04:50,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:04:50,816 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 349 transitions. [2020-09-25 13:04:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 13:04:50,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:50,820 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] [2020-09-25 13:04:50,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:04:50,820 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:50,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1047311863, now seen corresponding path program 1 times [2020-09-25 13:04:50,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:50,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869984160] [2020-09-25 13:04:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:50,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:51,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:51,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:55,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:55,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:04:55,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:04:55,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4466 [2020-09-25 13:04:55,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:55,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:55,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:04:55,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:04:55,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-25 13:04:55,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:55,701 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:55,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:55,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:55,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:55,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 13:04:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:55,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:04:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:55,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:56,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:56,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:56,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:56,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:04:56,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:56,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:04:56,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:56,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:56,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:56,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:04:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:04:56,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:04:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:04:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:04:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:04:56,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:04:56,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:04:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:04:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:04:56,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:04:56,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:04:56,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:04:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:04:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:04:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:04:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:56,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:56,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:04:56,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 13:04:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:56,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:56,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 13:04:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:56,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:56,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:56,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:04:56,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:56,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:04:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:56,251 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 13:04:56,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869984160] [2020-09-25 13:04:56,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:56,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:04:56,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540873916] [2020-09-25 13:04:56,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:04:56,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:56,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:04:56,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:04:56,255 INFO L87 Difference]: Start difference. First operand 321 states and 349 transitions. Second operand 11 states. [2020-09-25 13:04:57,032 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:58,515 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:58,853 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:59,199 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:59,535 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:04:59,888 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:00,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:00,278 INFO L93 Difference]: Finished difference Result 578 states and 685 transitions. [2020-09-25 13:05:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:05:00,279 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 169 [2020-09-25 13:05:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:00,280 INFO L225 Difference]: With dead ends: 578 [2020-09-25 13:05:00,283 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:05:00,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:05:00,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:05:00,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:05:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:05:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:05:00,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 169 [2020-09-25 13:05:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:00,286 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:05:00,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:05:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:05:00,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:05:00,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:05:00,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:05:00,503 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:00,665 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:00,825 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:00,980 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:01,141 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:01,295 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:01,450 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:01,730 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:05:02,005 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:05:02,115 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 10 [2020-09-25 13:05:02,457 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:02,796 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:03,119 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:03,446 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:03,708 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:05:03,969 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:05:04,501 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:05:04,653 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:04,809 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:04,962 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:05,112 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:05,261 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:05,411 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:05,563 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:05,714 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:05,864 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:06,018 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:06,172 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:06,321 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:06,473 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:06,630 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:06,795 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:06,942 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:07,095 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:07,243 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:07,396 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:07,550 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:07,703 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:07,843 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:08,000 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:08,153 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:08,301 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:08,448 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:08,597 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:08,745 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:08,893 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:09,047 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:09,200 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:09,348 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:09,497 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:09,645 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:09,798 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:09,950 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:10,098 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:10,249 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:10,396 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:10,550 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:10,703 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:10,856 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:11,008 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:11,160 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:11,307 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:11,460 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:11,672 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:05:11,825 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:11,977 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:12,125 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:12,272 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:12,424 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:12,580 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:12,733 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:12,842 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:05:12,956 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:05:13,111 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:13,267 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:13,419 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:13,683 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:05:13,950 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:05:14,366 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:14,695 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:15,023 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:15,353 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:15,617 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:05:15,879 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:05:16,414 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:05:16,531 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:05:16,692 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:16,845 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:16,993 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:17,413 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:17,921 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:18,074 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:18,226 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:18,381 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:18,529 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:18,678 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:18,826 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:18,974 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:19,121 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:19,273 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:19,691 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:20,198 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:20,326 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:05:20,802 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 13:05:21,025 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 13:05:21,250 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 20