/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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:27:04,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:27:04,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:27:05,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:27:05,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:27:05,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:27:05,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:27:05,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:27:05,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:27:05,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:27:05,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:27:05,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:27:05,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:27:05,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:27:05,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:27:05,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:27:05,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:27:05,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:27:05,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:27:05,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:27:05,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:27:05,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:27:05,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:27:05,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:27:05,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:27:05,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:27:05,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:27:05,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:27:05,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:27:05,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:27:05,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:27:05,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:27:05,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:27:05,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:27:05,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:27:05,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:27:05,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:27:05,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:27:05,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:27:05,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:27:05,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:27:05,054 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 07:27:05,082 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:27:05,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:27:05,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:27:05,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:27:05,084 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:27:05,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:27:05,084 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:27:05,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:27:05,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:27:05,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:27:05,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:27:05,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:27:05,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:27:05,086 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:27:05,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:27:05,086 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:27:05,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:27:05,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:27:05,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:27:05,087 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:27:05,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:27:05,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:27:05,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:27:05,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:27:05,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:27:05,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:27:05,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:27:05,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:27:05,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:27:05,089 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:27:05,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:27:05,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:27:05,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:27:05,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:27:05,591 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:27:05,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2020-09-25 07:27:05,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/469174a12/b652b7be171b49518c3c0c76d855046b/FLAG8b4faef6a [2020-09-25 07:27:06,243 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:27:06,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2020-09-25 07:27:06,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/469174a12/b652b7be171b49518c3c0c76d855046b/FLAG8b4faef6a [2020-09-25 07:27:06,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/469174a12/b652b7be171b49518c3c0c76d855046b [2020-09-25 07:27:06,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:27:06,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:27:06,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:06,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:27:06,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:27:06,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7405883a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06, skipping insertion in model container [2020-09-25 07:27:06,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:27:06,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:27:07,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:07,289 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:27:07,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:07,405 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:27:07,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07 WrapperNode [2020-09-25 07:27:07,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:07,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:27:07,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:27:07,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:27:07,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (1/1) ... [2020-09-25 07:27:07,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:27:07,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:27:07,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:27:07,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:27:07,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (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 07:27:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:27:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:27:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:27:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:27:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:27:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:27:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:27:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:27:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:27:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:27:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:27:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:27:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:27:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:27:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:27:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:27:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:27:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:27:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:27:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:27:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:27:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:27:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:27:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:27:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:27:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:27:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:27:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:27:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:27:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:27:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:27:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:27:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:27:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:27:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:27:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:27:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:27:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:27:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:27:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:27:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:27:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:27:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:27:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:27:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:27:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:27:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:27:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:27:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:27:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:27:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:27:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:27:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:27:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:27:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:27:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:27:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:27:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:27:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:27:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:27:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:27:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:27:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:27:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:27:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:27:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:27:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:27:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:27:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:27:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:27:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:27:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:27:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:27:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:27:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:27:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:27:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:27:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:27:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:27:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:27:08,739 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:27:08,739 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:27:08,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:08 BoogieIcfgContainer [2020-09-25 07:27:08,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:27:08,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:27:08,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:27:08,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:27:08,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:27:06" (1/3) ... [2020-09-25 07:27:08,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54477f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:08, skipping insertion in model container [2020-09-25 07:27:08,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:07" (2/3) ... [2020-09-25 07:27:08,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54477f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:08, skipping insertion in model container [2020-09-25 07:27:08,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:08" (3/3) ... [2020-09-25 07:27:08,757 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2020-09-25 07:27:08,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:27:08,780 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:27:08,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:27:08,832 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:27:08,833 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:27:08,833 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:27:08,833 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:27:08,833 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:27:08,833 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:27:08,833 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:27:08,833 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:27:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 07:27:08,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:27:08,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:08,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:08,883 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:08,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:08,891 INFO L82 PathProgramCache]: Analyzing trace with hash 349586246, now seen corresponding path program 1 times [2020-09-25 07:27:08,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:08,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57500548] [2020-09-25 07:27:08,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:11,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:12,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:14,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:14,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:27:14,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:14,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 07:27:14,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:14,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:14,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:14,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:27:14,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-25 07:27:14,865 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:14,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:14,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:15,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 07:27:15,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:15,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:15,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:15,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:15,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:15,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:15,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:15,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:27:15,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:15,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:15,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:27:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:15,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:27:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:15,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:15,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:15,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:15,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:15,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:15,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:15,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:15,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:15,201 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 07:27:15,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57500548] [2020-09-25 07:27:15,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:15,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:27:15,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129958139] [2020-09-25 07:27:15,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:27:15,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:15,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:27:15,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:27:15,248 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 3 states. [2020-09-25 07:27:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:17,089 INFO L93 Difference]: Finished difference Result 496 states and 592 transitions. [2020-09-25 07:27:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:27:17,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:27:17,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:17,113 INFO L225 Difference]: With dead ends: 496 [2020-09-25 07:27:17,114 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 07:27:17,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:27:17,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 07:27:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 263. [2020-09-25 07:27:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 07:27:17,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 287 transitions. [2020-09-25 07:27:17,256 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 287 transitions. Word has length 142 [2020-09-25 07:27:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:17,258 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 287 transitions. [2020-09-25 07:27:17,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:27:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 287 transitions. [2020-09-25 07:27:17,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:27:17,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:17,272 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] [2020-09-25 07:27:17,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:27:17,273 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:17,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:17,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1227097800, now seen corresponding path program 1 times [2020-09-25 07:27:17,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:17,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660830103] [2020-09-25 07:27:17,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:17,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:17,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:19,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:27:22,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 07:27:22,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:22,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:27:22,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:22,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,753 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:22,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:22,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:22,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 07:27:22,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:22,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:22,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:22,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:22,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:22,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:22,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:22,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:22,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:22,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:22,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:22,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:22,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:22,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:22,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:22,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:27:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:22,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:22,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:22,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:27:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:22,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:22,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:22,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:22,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:22,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:22,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:22,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:22,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:22,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:22,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:22,960 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 07:27:22,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660830103] [2020-09-25 07:27:22,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:22,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:27:22,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506171119] [2020-09-25 07:27:22,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:27:22,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:22,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:27:22,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:27:22,965 INFO L87 Difference]: Start difference. First operand 263 states and 287 transitions. Second operand 4 states. [2020-09-25 07:27:23,596 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:24,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:24,741 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2020-09-25 07:27:24,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:27:24,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:27:24,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:24,748 INFO L225 Difference]: With dead ends: 409 [2020-09-25 07:27:24,748 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 07:27:24,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 07:27:24,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 07:27:24,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 253. [2020-09-25 07:27:24,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 07:27:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 274 transitions. [2020-09-25 07:27:24,794 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 274 transitions. Word has length 143 [2020-09-25 07:27:24,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:24,794 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 274 transitions. [2020-09-25 07:27:24,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:27:24,795 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 274 transitions. [2020-09-25 07:27:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 07:27:24,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:24,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:24,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:27:24,797 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:24,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:24,798 INFO L82 PathProgramCache]: Analyzing trace with hash 766984767, now seen corresponding path program 1 times [2020-09-25 07:27:24,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:24,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230402718] [2020-09-25 07:27:24,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:24,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:25,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:25,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:29,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:29,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:27:29,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:27:29,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 07:27:29,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:29,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:27:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:27:29,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,198 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:30,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:30,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 07:27:30,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:30,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:30,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:30,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:30,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:30,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:30,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:30,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:30,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:30,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:30,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:30,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:30,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:27:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:30,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:30,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:27:30,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:27:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:30,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:30,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:30,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:30,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:30,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:27:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:30,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:30,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:30,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:30,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:30,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:30,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:30,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:30,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:30,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:30,448 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 07:27:30,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230402718] [2020-09-25 07:27:30,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:30,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:27:30,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465369153] [2020-09-25 07:27:30,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:27:30,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:30,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:27:30,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:27:30,454 INFO L87 Difference]: Start difference. First operand 253 states and 274 transitions. Second operand 5 states. [2020-09-25 07:27:30,916 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:32,076 INFO L93 Difference]: Finished difference Result 455 states and 525 transitions. [2020-09-25 07:27:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:27:32,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 07:27:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:32,082 INFO L225 Difference]: With dead ends: 455 [2020-09-25 07:27:32,083 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 07:27:32,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 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 07:27:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 07:27:32,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 253. [2020-09-25 07:27:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 07:27:32,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-09-25 07:27:32,128 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 156 [2020-09-25 07:27:32,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:32,129 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-09-25 07:27:32,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:27:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-09-25 07:27:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 07:27:32,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:32,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:32,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:27:32,132 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:32,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:32,133 INFO L82 PathProgramCache]: Analyzing trace with hash -270479098, now seen corresponding path program 1 times [2020-09-25 07:27:32,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:32,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728147035] [2020-09-25 07:27:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:32,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:32,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:32,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:34,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:35,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 07:27:37,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:27:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:27:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:27:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:27:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:37,532 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:37,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:37,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 07:27:37,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:37,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:37,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:37,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:37,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:37,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:37,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:37,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:37,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:37,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:37,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:37,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:37,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:27:37,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:27:37,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:37,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:37,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:37,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:37,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:37,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:37,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:27:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:37,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:37,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:37,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:37,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:37,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:27:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:27:37,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:27:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:27:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:27:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:27:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:37,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:27:37,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:27:37,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:37,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:27:37,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:27:37,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:37,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:38,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:38,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:27:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:38,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:38,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:27:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:38,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:38,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:27:38,095 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 07:27:38,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728147035] [2020-09-25 07:27:38,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:38,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:27:38,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333331512] [2020-09-25 07:27:38,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:27:38,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:38,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:27:38,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:27:38,098 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 8 states. [2020-09-25 07:27:38,783 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:40,446 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:41,414 INFO L93 Difference]: Finished difference Result 643 states and 763 transitions. [2020-09-25 07:27:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:27:41,415 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-09-25 07:27:41,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:41,423 INFO L225 Difference]: With dead ends: 643 [2020-09-25 07:27:41,423 INFO L226 Difference]: Without dead ends: 500 [2020-09-25 07:27:41,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:27:41,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-09-25 07:27:41,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 373. [2020-09-25 07:27:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-25 07:27:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 402 transitions. [2020-09-25 07:27:41,523 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 402 transitions. Word has length 169 [2020-09-25 07:27:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:41,524 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 402 transitions. [2020-09-25 07:27:41,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:27:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 402 transitions. [2020-09-25 07:27:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:27:41,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:41,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:41,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:27:41,527 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:41,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:41,527 INFO L82 PathProgramCache]: Analyzing trace with hash 527170398, now seen corresponding path program 1 times [2020-09-25 07:27:41,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:41,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932768653] [2020-09-25 07:27:41,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:42,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:42,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:43,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:43,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:27:46,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:27:46,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,971 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:46,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:47,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 07:27:47,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:47,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:47,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:47,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:47,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:47,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:47,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:47,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:47,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:47,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:47,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:47,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:47,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:47,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:47,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:27:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:27:47,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:47,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:27:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:27:47,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:47,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 07:27:47,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:47,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:27:47,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:47,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:27:47,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:27:47,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:47,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:47,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:27:47,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:27:47,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:27:47,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:47,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:27:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:27:47,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:27:47,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:47,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:27:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:47,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:47,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:47,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:47,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:47,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 07:27:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:47,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:47,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:47,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:47,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 07:27:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:47,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:47,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:27:47,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:47,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:47,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,655 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 07:27:47,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932768653] [2020-09-25 07:27:47,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:47,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:27:47,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560578586] [2020-09-25 07:27:47,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:27:47,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:47,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:27:47,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:27:47,660 INFO L87 Difference]: Start difference. First operand 373 states and 402 transitions. Second operand 10 states. [2020-09-25 07:27:48,223 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:49,909 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:50,197 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:50,586 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:51,567 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:27:51,877 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191