/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:13:07,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:13:07,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:13:07,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:13:07,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:13:07,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:13:07,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:13:07,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:13:07,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:13:07,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:13:07,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:13:07,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:13:07,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:13:07,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:13:07,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:13:07,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:13:07,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:13:07,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:13:07,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:13:07,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:13:07,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:13:07,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:13:07,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:13:07,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:13:07,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:13:07,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:13:07,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:13:07,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:13:07,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:13:07,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:13:07,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:13:07,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:13:07,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:13:07,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:13:07,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:13:07,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:13:07,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:13:07,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:13:07,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:13:07,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:13:07,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:13:07,103 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 05:13:07,154 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:13:07,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:13:07,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:13:07,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:13:07,157 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:13:07,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:13:07,157 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:13:07,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:13:07,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:13:07,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:13:07,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:13:07,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:13:07,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:13:07,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:13:07,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:13:07,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:13:07,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:13:07,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:13:07,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:13:07,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:13:07,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:13:07,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:13:07,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:13:07,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:13:07,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:13:07,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:13:07,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:13:07,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:13:07,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:13:07,163 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=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:13:07,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:13:07,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:13:07,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:13:07,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:13:07,683 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:13:07,684 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-25 05:13:07,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70f0e2c23/8fc806c61bb244b2be64c1f5c4cb888b/FLAG94acdf232 [2020-09-25 05:13:08,351 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:13:08,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product53.cil.c [2020-09-25 05:13:08,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70f0e2c23/8fc806c61bb244b2be64c1f5c4cb888b/FLAG94acdf232 [2020-09-25 05:13:08,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70f0e2c23/8fc806c61bb244b2be64c1f5c4cb888b [2020-09-25 05:13:08,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:13:08,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:13:08,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:08,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:13:08,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:13:08,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:08" (1/1) ... [2020-09-25 05:13:08,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:08, skipping insertion in model container [2020-09-25 05:13:08,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:08" (1/1) ... [2020-09-25 05:13:08,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:13:08,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:13:09,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:09,246 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:13:09,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:09,367 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:13:09,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09 WrapperNode [2020-09-25 05:13:09,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:09,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:13:09,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:13:09,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:13:09,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:13:09,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:13:09,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:13:09,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:13:09,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (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 05:13:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:13:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:13:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:13:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:13:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:13:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:13:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:13:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:13:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:13:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:13:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:13:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:13:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:13:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:13:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:13:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:13:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:13:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:13:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:13:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:13:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:13:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:13:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:13:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:13:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:13:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:13:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:13:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:13:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:13:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:13:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:13:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:13:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:13:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:13:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:13:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:13:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:13:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:13:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:13:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:13:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:13:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:13:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:13:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:13:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:13:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:13:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:13:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:13:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:13:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:13:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:13:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:13:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:13:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:13:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:13:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:13:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:13:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:13:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:13:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:13:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:13:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:13:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:13:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:13:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:13:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:13:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:13:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:13:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:13:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:13:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:13:10,773 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:13:10,774 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:13:10,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:10 BoogieIcfgContainer [2020-09-25 05:13:10,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:13:10,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:13:10,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:13:10,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:13:10,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:13:08" (1/3) ... [2020-09-25 05:13:10,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7f0010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:10, skipping insertion in model container [2020-09-25 05:13:10,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09" (2/3) ... [2020-09-25 05:13:10,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7f0010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:10, skipping insertion in model container [2020-09-25 05:13:10,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:10" (3/3) ... [2020-09-25 05:13:10,799 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2020-09-25 05:13:10,811 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:13:10,823 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:13:10,845 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:13:10,877 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:13:10,877 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:13:10,878 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:13:10,878 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:13:10,878 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:13:10,878 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:13:10,878 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:13:10,878 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:13:10,905 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-09-25 05:13:10,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:13:10,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:10,926 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] [2020-09-25 05:13:10,927 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:10,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1512755977, now seen corresponding path program 1 times [2020-09-25 05:13:10,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:10,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421877978] [2020-09-25 05:13:10,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:11,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:11,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:12,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:13,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:14,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:16,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:13:16,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:13:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-25 05:13:16,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:16,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:13:16,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 05:13:16,885 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:16,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:16,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:17,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 05:13:17,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:17,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:17,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:13:17,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:17,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:17,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:17,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:17,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:17,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:13:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:17,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:17,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:13:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:17,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,345 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 05:13:17,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421877978] [2020-09-25 05:13:17,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:17,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:13:17,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968065418] [2020-09-25 05:13:17,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:13:17,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:17,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:13:17,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:17,389 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 4 states. [2020-09-25 05:13:19,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:19,063 INFO L93 Difference]: Finished difference Result 544 states and 644 transitions. [2020-09-25 05:13:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:13:19,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:13:19,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:19,099 INFO L225 Difference]: With dead ends: 544 [2020-09-25 05:13:19,099 INFO L226 Difference]: Without dead ends: 339 [2020-09-25 05:13:19,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:19,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-25 05:13:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2020-09-25 05:13:19,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-25 05:13:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 318 transitions. [2020-09-25 05:13:19,313 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 318 transitions. Word has length 148 [2020-09-25 05:13:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:19,315 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 318 transitions. [2020-09-25 05:13:19,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:13:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 318 transitions. [2020-09-25 05:13:19,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:13:19,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:19,326 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] [2020-09-25 05:13:19,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:13:19,327 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:19,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1077192285, now seen corresponding path program 1 times [2020-09-25 05:13:19,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:19,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144884599] [2020-09-25 05:13:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:19,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:19,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:20,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:20,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:13:24,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:24,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 05:13:24,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 05:13:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 05:13:24,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:24,758 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:24,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:25,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 05:13:25,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 05:13:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:25,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:25,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:25,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:25,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:25,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:25,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:25,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:13:25,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:25,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:25,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:25,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:25,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:13:25,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:25,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:13:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:25,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:25,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:25,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:25,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:25,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:13:25,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144884599] [2020-09-25 05:13:25,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:25,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:13:25,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016277458] [2020-09-25 05:13:25,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:13:25,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:25,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:13:25,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:13:25,199 INFO L87 Difference]: Start difference. First operand 290 states and 318 transitions. Second operand 5 states. [2020-09-25 05:13:25,761 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:26,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:26,789 INFO L93 Difference]: Finished difference Result 514 states and 595 transitions. [2020-09-25 05:13:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:13:26,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:13:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:26,797 INFO L225 Difference]: With dead ends: 514 [2020-09-25 05:13:26,798 INFO L226 Difference]: Without dead ends: 339 [2020-09-25 05:13:26,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:13:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-25 05:13:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2020-09-25 05:13:26,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-25 05:13:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 317 transitions. [2020-09-25 05:13:26,866 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 317 transitions. Word has length 149 [2020-09-25 05:13:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:26,868 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 317 transitions. [2020-09-25 05:13:26,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:13:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 317 transitions. [2020-09-25 05:13:26,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 05:13:26,871 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:26,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:26,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:13:26,872 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:26,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:26,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1109728421, now seen corresponding path program 1 times [2020-09-25 05:13:26,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:26,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804772528] [2020-09-25 05:13:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:26,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:27,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:27,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:29,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:29,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:29,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:30,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:31,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:31,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 05:13:31,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:13:31,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:13:31,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:31,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:31,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 05:13:31,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:31,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,282 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:32,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:32,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 05:13:32,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:13:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:32,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:32,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:32,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:32,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:32,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:32,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:32,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:32,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:32,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:32,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:13:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:13:32,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:13:32,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:13:32,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 05:13:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 05:13:32,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:13:32,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:13:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:32,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:13:32,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:13:32,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:13:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:13:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:32,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:32,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 05:13:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:13:32,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 05:13:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:32,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:32,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,686 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 05:13:32,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804772528] [2020-09-25 05:13:32,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:32,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:13:32,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106400183] [2020-09-25 05:13:32,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:13:32,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:32,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:13:32,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:13:32,694 INFO L87 Difference]: Start difference. First operand 290 states and 317 transitions. Second operand 7 states. [2020-09-25 05:13:33,238 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:34,840 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:13:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:36,328 INFO L93 Difference]: Finished difference Result 693 states and 832 transitions. [2020-09-25 05:13:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 05:13:36,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-25 05:13:36,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:36,335 INFO L225 Difference]: With dead ends: 693 [2020-09-25 05:13:36,335 INFO L226 Difference]: Without dead ends: 518 [2020-09-25 05:13:36,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 05:13:36,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-25 05:13:36,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 429. [2020-09-25 05:13:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 05:13:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 478 transitions. [2020-09-25 05:13:36,410 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 478 transitions. Word has length 176 [2020-09-25 05:13:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:36,411 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 478 transitions. [2020-09-25 05:13:36,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:13:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 478 transitions. [2020-09-25 05:13:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 05:13:36,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:36,415 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] [2020-09-25 05:13:36,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:13:36,415 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:36,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1056538629, now seen corresponding path program 1 times [2020-09-25 05:13:36,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:36,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591497390] [2020-09-25 05:13:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:36,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:36,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:37,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:37,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:41,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:41,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 05:13:41,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:13:41,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:13:41,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:41,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:13:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:13:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:41,812 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:41,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:41,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:41,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:41,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:41,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 05:13:41,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:41,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:41,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:41,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:41,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:41,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:41,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:41,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:41,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:41,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:41,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:41,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:41,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:41,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:41,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:41,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:41,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:41,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:41,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:41,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:41,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:41,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:41,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:41,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:41,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:41,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:41,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:41,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:41,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:41,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:41,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:41,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:41,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:42,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:42,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:42,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:42,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 05:13:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 05:13:42,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 05:13:42,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 05:13:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:13:42,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:13:42,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:13:42,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 05:13:42,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:13:42,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:13:42,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:13:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:13:42,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:42,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:42,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:13:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:42,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:42,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 05:13:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:42,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:42,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 05:13:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:42,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:42,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:42,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,244 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 05:13:42,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591497390] [2020-09-25 05:13:42,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:42,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:13:42,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990902299] [2020-09-25 05:13:42,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:13:42,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:13:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:13:42,250 INFO L87 Difference]: Start difference. First operand 429 states and 478 transitions. Second operand 6 states. [2020-09-25 05:13:43,150 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:44,533 INFO L93 Difference]: Finished difference Result 721 states and 814 transitions. [2020-09-25 05:13:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:13:44,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2020-09-25 05:13:44,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:44,538 INFO L225 Difference]: With dead ends: 721 [2020-09-25 05:13:44,538 INFO L226 Difference]: Without dead ends: 467 [2020-09-25 05:13:44,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:13:44,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-25 05:13:44,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 402. [2020-09-25 05:13:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 05:13:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 435 transitions. [2020-09-25 05:13:44,584 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 435 transitions. Word has length 191 [2020-09-25 05:13:44,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:44,585 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 435 transitions. [2020-09-25 05:13:44,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:13:44,585 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 435 transitions. [2020-09-25 05:13:44,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 05:13:44,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:44,588 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:44,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:13:44,588 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:44,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:44,589 INFO L82 PathProgramCache]: Analyzing trace with hash -433831518, now seen corresponding path program 1 times [2020-09-25 05:13:44,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:44,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667257460] [2020-09-25 05:13:44,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:44,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:45,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:45,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:45,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:45,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 05:13:49,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 05:13:49,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:13:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:13:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 05:13:49,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:49,952 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:49,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:50,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 05:13:50,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:50,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:50,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:50,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:50,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:50,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:50,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:50,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:50,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:50,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:50,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:50,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:50,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:50,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:13:50,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:13:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 05:13:50,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 05:13:50,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 05:13:50,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:50,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:13:50,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:50,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:13:50,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:13:50,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:13:50,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:13:50,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:13:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:13:50,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:50,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:13:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:50,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:50,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 05:13:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:50,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:50,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:50,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 05:13:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:50,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:50,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:50,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:50,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:50,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:50,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,317 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 05:13:50,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667257460] [2020-09-25 05:13:50,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:50,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:13:50,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531821926] [2020-09-25 05:13:50,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:13:50,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:50,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:13:50,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:13:50,319 INFO L87 Difference]: Start difference. First operand 402 states and 435 transitions. Second operand 6 states. [2020-09-25 05:13:50,815 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:53,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:53,199 INFO L93 Difference]: Finished difference Result 846 states and 1004 transitions. [2020-09-25 05:13:53,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:13:53,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-09-25 05:13:53,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:53,205 INFO L225 Difference]: With dead ends: 846 [2020-09-25 05:13:53,206 INFO L226 Difference]: Without dead ends: 843 [2020-09-25 05:13:53,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:13:53,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-09-25 05:13:53,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 697. [2020-09-25 05:13:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-09-25 05:13:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 774 transitions. [2020-09-25 05:13:53,312 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 774 transitions. Word has length 200 [2020-09-25 05:13:53,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:53,312 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 774 transitions. [2020-09-25 05:13:53,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:13:53,313 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 774 transitions. [2020-09-25 05:13:53,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-25 05:13:53,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:53,318 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:13:53,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:13:53,319 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:53,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:53,319 INFO L82 PathProgramCache]: Analyzing trace with hash -171050541, now seen corresponding path program 1 times [2020-09-25 05:13:53,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:53,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442193622] [2020-09-25 05:13:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:53,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:53,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:53,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking...