/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:42:43,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:42:43,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:42:43,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:42:43,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:42:43,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:42:43,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:42:43,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:42:43,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:42:43,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:42:43,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:42:43,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:42:43,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:42:43,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:42:43,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:42:43,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:42:43,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:42:43,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:42:43,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:42:43,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:42:43,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:42:43,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:42:43,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:42:43,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:42:43,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:42:43,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:42:43,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:42:43,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:42:43,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:42:43,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:42:43,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:42:43,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:42:43,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:42:43,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:42:43,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:42:43,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:42:43,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:42:43,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:42:43,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:42:43,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:42:43,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:42:43,574 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 08:42:43,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:42:43,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:42:43,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:42:43,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:42:43,637 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:42:43,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:42:43,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:42:43,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:42:43,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:42:43,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:42:43,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:42:43,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:42:43,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:42:43,640 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:42:43,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:42:43,641 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:42:43,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:42:43,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:42:43,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:42:43,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:42:43,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:42:43,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:42:43,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:42:43,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:42:43,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:42:43,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:42:43,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:42:43,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:42:43,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:42:43,645 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:42:44,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:42:44,167 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:42:44,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:42:44,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:42:44,174 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:42:44,176 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-25 08:42:44,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baceebb0b/5527994d81694d48bc8e91079193d399/FLAG11f675991 [2020-09-25 08:42:44,876 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:42:44,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-25 08:42:44,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baceebb0b/5527994d81694d48bc8e91079193d399/FLAG11f675991 [2020-09-25 08:42:45,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baceebb0b/5527994d81694d48bc8e91079193d399 [2020-09-25 08:42:45,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:42:45,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:42:45,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:42:45,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:42:45,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:42:45,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,182 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 08:42:45, skipping insertion in model container [2020-09-25 08:42:45,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:42:45,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:42:45,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:42:45,685 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:42:45,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:42:45,906 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:42:45,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45 WrapperNode [2020-09-25 08:42:45,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:42:45,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:42:45,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:42:45,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:42:45,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:45,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (1/1) ... [2020-09-25 08:42:46,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:42:46,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:42:46,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:42:46,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:42:46,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (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 08:42:46,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:42:46,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:42:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:42:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:42:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:42:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:42:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:42:46,082 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:42:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:42:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:42:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:42:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:42:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:42:46,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:42:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:42:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:42:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:42:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:42:46,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:42:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:42:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:42:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:42:46,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:42:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:42:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:42:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:42:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:42:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:42:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:42:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:42:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 08:42:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:42:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:42:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:42:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:42:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:42:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:42:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:42:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:42:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:42:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:42:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:42:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:42:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:42:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:42:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:42:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:42:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:42:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:42:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:42:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:42:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:42:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:42:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:42:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:42:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:42:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:42:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:42:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:42:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:42:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:42:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:42:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:42:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:42:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:42:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:42:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:42:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:42:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:42:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:42:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:42:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:42:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:42:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:42:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:42:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:42:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:42:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:42:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:42:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:42:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:42:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:42:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:42:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:42:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:42:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:42:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 08:42:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:42:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 08:42:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:42:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:42:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:42:46,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:42:47,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:42:47,331 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:42:47,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:42:47 BoogieIcfgContainer [2020-09-25 08:42:47,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:42:47,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:42:47,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:42:47,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:42:47,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:42:45" (1/3) ... [2020-09-25 08:42:47,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9e009d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:42:47, skipping insertion in model container [2020-09-25 08:42:47,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:42:45" (2/3) ... [2020-09-25 08:42:47,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9e009d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:42:47, skipping insertion in model container [2020-09-25 08:42:47,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:42:47" (3/3) ... [2020-09-25 08:42:47,349 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-09-25 08:42:47,361 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:42:47,373 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:42:47,394 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:42:47,424 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:42:47,424 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:42:47,424 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:42:47,424 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:42:47,424 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:42:47,425 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:42:47,425 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:42:47,425 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:42:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states. [2020-09-25 08:42:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 08:42:47,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:47,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:42:47,479 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:47,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:47,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1599034145, now seen corresponding path program 1 times [2020-09-25 08:42:47,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:47,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090891848] [2020-09-25 08:42:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:47,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:48,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:49,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:52,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:52,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 08:42:52,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:42:52,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 08:42:52,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:52,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:42:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:52,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:42:53,240 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:53,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:53,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 08:42:53,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:53,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:53,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:53,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:53,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:53,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:42:53,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:53,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:53,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:53,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:42:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:53,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:53,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:42:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:53,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:42:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:53,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:53,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:53,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:53,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:53,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:53,560 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 08:42:53,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090891848] [2020-09-25 08:42:53,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:53,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:42:53,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149408534] [2020-09-25 08:42:53,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:42:53,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:53,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:42:53,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:42:53,595 INFO L87 Difference]: Start difference. First operand 349 states. Second operand 3 states. [2020-09-25 08:42:55,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:55,181 INFO L93 Difference]: Finished difference Result 567 states and 676 transitions. [2020-09-25 08:42:55,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:42:55,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 08:42:55,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:55,206 INFO L225 Difference]: With dead ends: 567 [2020-09-25 08:42:55,206 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 08:42:55,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:42:55,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 08:42:55,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 298. [2020-09-25 08:42:55,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-25 08:42:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 328 transitions. [2020-09-25 08:42:55,353 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 328 transitions. Word has length 153 [2020-09-25 08:42:55,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:55,354 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 328 transitions. [2020-09-25 08:42:55,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:42:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 328 transitions. [2020-09-25 08:42:55,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 08:42:55,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:55,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:42:55,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:42:55,370 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:55,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:55,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1907459970, now seen corresponding path program 1 times [2020-09-25 08:42:55,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:55,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107722894] [2020-09-25 08:42:55,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:55,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:57,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:00,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:00,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:43:00,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:43:00,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 08:43:00,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:00,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:43:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:43:00,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:00,836 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:43:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:43:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:00,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:00,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:00,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:43:00,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 08:43:00,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:00,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:00,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:43:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:00,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:00,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:00,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:00,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:00,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:00,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:00,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:00,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:00,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:43:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:00,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:00,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:00,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:00,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:00,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:00,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:00,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:43:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:00,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:00,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:00,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:00,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:43:00,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:00,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:00,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:43:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:00,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:00,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:01,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:01,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:43:01,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:01,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:01,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 08:43:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:01,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:01,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:01,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:01,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:01,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:01,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:43:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:01,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:01,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 08:43:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:01,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:01,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:01,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:01,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:01,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:01,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:01,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:43:01,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:01,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 08:43:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:01,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:01,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:01,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:01,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:01,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:01,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:43:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:01,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:01,050 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 08:43:01,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107722894] [2020-09-25 08:43:01,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:43:01,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:43:01,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397705629] [2020-09-25 08:43:01,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:43:01,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:43:01,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:43:01,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:43:01,055 INFO L87 Difference]: Start difference. First operand 298 states and 328 transitions. Second operand 4 states. [2020-09-25 08:43:01,835 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:43:03,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:43:03,201 INFO L93 Difference]: Finished difference Result 478 states and 543 transitions. [2020-09-25 08:43:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:43:03,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 08:43:03,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:43:03,207 INFO L225 Difference]: With dead ends: 478 [2020-09-25 08:43:03,207 INFO L226 Difference]: Without dead ends: 326 [2020-09-25 08:43:03,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:43:03,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-25 08:43:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 288. [2020-09-25 08:43:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-09-25 08:43:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 315 transitions. [2020-09-25 08:43:03,259 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 315 transitions. Word has length 154 [2020-09-25 08:43:03,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:43:03,260 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 315 transitions. [2020-09-25 08:43:03,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:43:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 315 transitions. [2020-09-25 08:43:03,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 08:43:03,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:43:03,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:43:03,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:43:03,264 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:43:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:43:03,265 INFO L82 PathProgramCache]: Analyzing trace with hash -383907644, now seen corresponding path program 1 times [2020-09-25 08:43:03,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:43:03,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164992171] [2020-09-25 08:43:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:43:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:03,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:03,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:07,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:07,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 08:43:07,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:43:07,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4120 [2020-09-25 08:43:07,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:07,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:07,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:43:07,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 08:43:07,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 08:43:07,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:07,841 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:43:07,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:43:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:07,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:43:08,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 08:43:08,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 08:43:08,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:08,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:43:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:08,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:08,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:08,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:08,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:43:08,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:08,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:43:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:08,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:08,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:08,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:43:08,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:08,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:43:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:08,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:08,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:43:08,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:08,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:08,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:43:08,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:43:08,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:43:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:08,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:08,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:08,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:08,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:08,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:43:08,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:08,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:43:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:08,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:08,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:43:08,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:43:08,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:08,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:43:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:08,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:43:08,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:43:08,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:08,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:43:08,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:08,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 08:43:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:08,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:08,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:08,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:08,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:08,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:08,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:08,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:08,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:08,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:43:08,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:08,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:08,295 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 08:43:08,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164992171] [2020-09-25 08:43:08,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:43:08,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:43:08,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488289279] [2020-09-25 08:43:08,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:43:08,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:43:08,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:43:08,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:43:08,302 INFO L87 Difference]: Start difference. First operand 288 states and 315 transitions. Second operand 8 states. [2020-09-25 08:43:08,873 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:43:10,770 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:43:11,221 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:43:11,658 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:43:12,146 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:43:12,469 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:43:12,852 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:43:13,175 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:43:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:43:14,351 INFO L93 Difference]: Finished difference Result 675 states and 793 transitions. [2020-09-25 08:43:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:43:14,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 08:43:14,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:43:14,357 INFO L225 Difference]: With dead ends: 675 [2020-09-25 08:43:14,358 INFO L226 Difference]: Without dead ends: 497 [2020-09-25 08:43:14,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 08:43:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-25 08:43:14,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 460. [2020-09-25 08:43:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-09-25 08:43:14,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 519 transitions. [2020-09-25 08:43:14,442 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 519 transitions. Word has length 163 [2020-09-25 08:43:14,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:43:14,443 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 519 transitions. [2020-09-25 08:43:14,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:43:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 519 transitions. [2020-09-25 08:43:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 08:43:14,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:43:14,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:43:14,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:43:14,448 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:43:14,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:43:14,448 INFO L82 PathProgramCache]: Analyzing trace with hash 2117882388, now seen corresponding path program 1 times [2020-09-25 08:43:14,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:43:14,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227902443] [2020-09-25 08:43:14,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:43:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:14,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:14,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:16,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:17,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:19,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 08:43:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:43:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 08:43:19,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:19,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:43:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 08:43:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 08:43:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:19,869 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:43:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:43:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:19,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:43:20,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 08:43:20,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:43:20,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:43:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:20,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:20,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:20,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:20,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:43:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:43:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:20,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:20,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:43:20,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:43:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:20,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:43:20,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:20,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:43:20,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:43:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:20,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:20,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:43:20,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:43:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:43:20,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:43:20,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:20,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:43:20,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:43:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:20,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:20,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:43:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 08:43:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:20,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:20,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:43:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:20,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 08:43:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:20,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:20,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:20,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:20,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:20,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:20,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:20,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:20,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:43:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:20,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:20,416 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 08:43:20,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227902443] [2020-09-25 08:43:20,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:43:20,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:43:20,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798887780] [2020-09-25 08:43:20,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:43:20,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:43:20,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:43:20,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:43:20,419 INFO L87 Difference]: Start difference. First operand 460 states and 519 transitions. Second operand 5 states. [2020-09-25 08:43:20,888 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:43:23,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:43:23,516 INFO L93 Difference]: Finished difference Result 1206 states and 1409 transitions. [2020-09-25 08:43:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:43:23,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 08:43:23,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:43:23,523 INFO L225 Difference]: With dead ends: 1206 [2020-09-25 08:43:23,523 INFO L226 Difference]: Without dead ends: 856 [2020-09-25 08:43:23,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:43:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-09-25 08:43:23,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 789. [2020-09-25 08:43:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-09-25 08:43:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 901 transitions. [2020-09-25 08:43:23,634 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 901 transitions. Word has length 168 [2020-09-25 08:43:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:43:23,635 INFO L479 AbstractCegarLoop]: Abstraction has 789 states and 901 transitions. [2020-09-25 08:43:23,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:43:23,635 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 901 transitions. [2020-09-25 08:43:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 08:43:23,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:43:23,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:43:23,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:43:23,641 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:43:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:43:23,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1703994232, now seen corresponding path program 1 times [2020-09-25 08:43:23,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:43:23,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472931034] [2020-09-25 08:43:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:43:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:23,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:23,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:25,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:26,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:28,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:28,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 08:43:28,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:43:28,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:43:28,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:28,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:43:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:43:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:43:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:29,008 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:43:29,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:43:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:43:29,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 08:43:29,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:29,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:43:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:29,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:43:29,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:29,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:43:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:29,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:29,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:43:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:29,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:29,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:29,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:29,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:43:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:43:29,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:29,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:29,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:43:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:43:29,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:29,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:43:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:43:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:29,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:43:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:43:29,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:43:29,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:43:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:43:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:43:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:29,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:43:29,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:43:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:29,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 08:43:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:29,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:43:29,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:43:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:43:29,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:29,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 08:43:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:43:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:43:29,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:43:29,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:43:29,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:43:29,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:43:29,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:43:29,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:43:29,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:43:29,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:43:29,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:43:29,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:43:29,319 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 08:43:29,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472931034] [2020-09-25 08:43:29,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:43:29,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:43:29,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104957320] [2020-09-25 08:43:29,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:43:29,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:43:29,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:43:29,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:43:29,323 INFO L87 Difference]: Start difference. First operand 789 states and 901 transitions. Second operand 10 states. [2020-09-25 08:43:30,248 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:43:32,372 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:43:32,725 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:43:33,051 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188