/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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:12:16,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:12:16,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:12:16,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:12:16,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:12:16,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:12:16,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:12:16,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:12:16,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:12:16,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:12:16,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:12:16,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:12:16,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:12:16,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:12:16,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:12:16,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:12:16,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:12:16,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:12:16,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:12:16,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:12:16,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:12:16,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:12:16,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:12:16,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:12:16,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:12:16,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:12:16,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:12:16,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:12:16,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:12:16,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:12:16,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:12:16,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:12:16,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:12:16,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:12:16,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:12:16,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:12:16,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:12:16,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:12:16,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:12:16,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:12:16,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:12:16,174 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 05:12:16,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:12:16,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:12:16,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:12:16,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:12:16,205 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:12:16,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:12:16,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:12:16,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:12:16,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:12:16,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:12:16,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:12:16,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:12:16,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:12:16,207 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:12:16,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:12:16,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:12:16,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:12:16,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:12:16,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:12:16,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:12:16,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:12:16,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:12:16,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:12:16,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:12:16,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:12:16,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:12:16,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:12:16,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:12:16,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:12:16,210 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 05:12:16,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:12:16,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:12:16,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:12:16,697 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:12:16,698 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:12:16,699 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 05:12:16,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5957ca60/4259f802c3d74e858ae79a1a2d5ba79f/FLAGbe7a5c8a2 [2020-09-25 05:12:17,418 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:12:17,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-25 05:12:17,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5957ca60/4259f802c3d74e858ae79a1a2d5ba79f/FLAGbe7a5c8a2 [2020-09-25 05:12:17,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5957ca60/4259f802c3d74e858ae79a1a2d5ba79f [2020-09-25 05:12:17,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:12:17,664 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:12:17,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:17,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:12:17,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:12:17,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:17" (1/1) ... [2020-09-25 05:12:17,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:17, skipping insertion in model container [2020-09-25 05:12:17,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:17" (1/1) ... [2020-09-25 05:12:17,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:12:17,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:12:18,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:18,245 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:12:18,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:18,368 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:12:18,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18 WrapperNode [2020-09-25 05:12:18,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:18,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:12:18,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:12:18,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:12:18,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2020-09-25 05:12:18,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2020-09-25 05:12:18,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2020-09-25 05:12:18,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2020-09-25 05:12:18,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2020-09-25 05:12:18,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2020-09-25 05:12:18,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (1/1) ... [2020-09-25 05:12:18,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:12:18,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:12:18,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:12:18,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:12:18,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (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 05:12:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:12:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:12:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:12:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:12:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:12:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:12:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:12:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:12:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:12:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:12:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:12:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:12:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:12:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:12:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:12:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:12:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:12:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:12:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:12:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:12:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:12:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:12:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:12:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:12:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:12:18,598 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:12:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:12:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:12:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:12:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:12:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:12:18,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:12:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:12:18,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:12:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:12:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:12:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:12:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:12:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:12:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:12:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:12:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:12:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:12:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:12:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:12:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:12:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:12:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:12:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:12:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:12:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:12:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:12:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:12:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:12:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:12:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:12:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:12:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:12:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:12:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:12:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:12:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:12:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:12:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:12:19,744 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:12:19,744 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:12:19,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:19 BoogieIcfgContainer [2020-09-25 05:12:19,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:12:19,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:12:19,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:12:19,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:12:19,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:12:17" (1/3) ... [2020-09-25 05:12:19,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6917ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:19, skipping insertion in model container [2020-09-25 05:12:19,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:18" (2/3) ... [2020-09-25 05:12:19,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6917ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:19, skipping insertion in model container [2020-09-25 05:12:19,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:19" (3/3) ... [2020-09-25 05:12:19,761 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-25 05:12:19,772 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:12:19,784 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:12:19,805 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:12:19,836 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:12:19,836 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:12:19,836 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:12:19,836 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:12:19,836 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:12:19,836 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:12:19,836 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:12:19,837 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:12:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 05:12:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:12:19,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:19,883 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 05:12:19,883 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:19,891 INFO L82 PathProgramCache]: Analyzing trace with hash 837157569, now seen corresponding path program 1 times [2020-09-25 05:12:19,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:19,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151335503] [2020-09-25 05:12:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:22,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:25,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:12:25,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:25,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 05:12:25,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:25,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:12:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:12:25,687 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:25,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:25,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:25,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:25,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:25,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 05:12:25,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:25,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:25,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:25,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:25,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:25,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:25,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:25,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:25,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:25,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:25,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:25,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:25,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:25,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:25,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:25,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:25,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:25,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:25,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:25,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 05:12:25,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:25,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:25,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:25,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:25,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:25,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:25,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:25,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:25,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:25,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:25,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:25,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:25,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:25,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:25,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:25,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:25,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:25,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:26,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:12:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:26,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:26,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:26,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:26,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:26,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:26,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:26,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:26,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:12:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:26,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:26,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:26,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:26,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:26,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:26,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:26,041 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 05:12:26,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151335503] [2020-09-25 05:12:26,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:26,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:12:26,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454582136] [2020-09-25 05:12:26,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:12:26,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:26,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:12:26,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:12:26,073 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 4 states. [2020-09-25 05:12:27,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:27,387 INFO L93 Difference]: Finished difference Result 490 states and 581 transitions. [2020-09-25 05:12:27,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:12:27,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:12:27,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:27,410 INFO L225 Difference]: With dead ends: 490 [2020-09-25 05:12:27,410 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 05:12:27,416 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 05:12:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 05:12:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 263. [2020-09-25 05:12:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 05:12:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 286 transitions. [2020-09-25 05:12:27,530 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 286 transitions. Word has length 148 [2020-09-25 05:12:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:27,531 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 286 transitions. [2020-09-25 05:12:27,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:12:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 286 transitions. [2020-09-25 05:12:27,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:12:27,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:27,537 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 05:12:27,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:12:27,538 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:27,538 INFO L82 PathProgramCache]: Analyzing trace with hash 675807139, now seen corresponding path program 1 times [2020-09-25 05:12:27,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:27,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366199015] [2020-09-25 05:12:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:29,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:29,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:30,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:32,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:32,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:12:32,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:12:32,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 05:12:32,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:32,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:12:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:12:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:32,928 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:32,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:33,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 05:12:33,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:33,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:33,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:33,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:33,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:33,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:33,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:33,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:33,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:33,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:33,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:33,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:33,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:12:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:33,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:33,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:33,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:33,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:33,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:33,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:33,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:33,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:33,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:33,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:33,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:33,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:33,202 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 05:12:33,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366199015] [2020-09-25 05:12:33,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:33,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:12:33,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744671896] [2020-09-25 05:12:33,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:12:33,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:33,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:12:33,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:12:33,208 INFO L87 Difference]: Start difference. First operand 263 states and 286 transitions. Second operand 5 states. [2020-09-25 05:12:33,879 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:34,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:34,946 INFO L93 Difference]: Finished difference Result 415 states and 472 transitions. [2020-09-25 05:12:34,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:12:34,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:12:34,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:34,952 INFO L225 Difference]: With dead ends: 415 [2020-09-25 05:12:34,952 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 05:12:34,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:12:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 05:12:35,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 253. [2020-09-25 05:12:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 05:12:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-09-25 05:12:35,010 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 149 [2020-09-25 05:12:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:35,013 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-09-25 05:12:35,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:12:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-09-25 05:12:35,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:12:35,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:35,023 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] [2020-09-25 05:12:35,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:12:35,024 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:35,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:35,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1185263590, now seen corresponding path program 1 times [2020-09-25 05:12:35,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:35,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883956242] [2020-09-25 05:12:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:36,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:36,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:37,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 05:12:40,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:40,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 05:12:40,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:12:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:12:40,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:40,389 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:40,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:40,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 05:12:40,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:40,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:40,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:40,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:40,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:40,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:40,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:40,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:40,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:12:40,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:40,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:40,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:40,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:40,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:40,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:40,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:40,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:40,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:40,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:40,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:40,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:40,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:12:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:40,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:40,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:40,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:40,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:12:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:40,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:40,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:40,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:40,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:40,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:40,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:40,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:40,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:40,649 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 05:12:40,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883956242] [2020-09-25 05:12:40,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:40,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:12:40,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240864182] [2020-09-25 05:12:40,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:12:40,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:40,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:12:40,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:12:40,652 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 6 states. [2020-09-25 05:12:41,330 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:42,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:42,620 INFO L93 Difference]: Finished difference Result 462 states and 537 transitions. [2020-09-25 05:12:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:12:42,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 05:12:42,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:42,624 INFO L225 Difference]: With dead ends: 462 [2020-09-25 05:12:42,624 INFO L226 Difference]: Without dead ends: 324 [2020-09-25 05:12:42,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:12:42,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-09-25 05:12:42,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 253. [2020-09-25 05:12:42,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 05:12:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 272 transitions. [2020-09-25 05:12:42,679 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 272 transitions. Word has length 162 [2020-09-25 05:12:42,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:42,681 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 272 transitions. [2020-09-25 05:12:42,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:12:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 272 transitions. [2020-09-25 05:12:42,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 05:12:42,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:42,684 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] [2020-09-25 05:12:42,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:12:42,684 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:42,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:42,685 INFO L82 PathProgramCache]: Analyzing trace with hash -323701345, now seen corresponding path program 1 times [2020-09-25 05:12:42,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:42,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940455678] [2020-09-25 05:12:42,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:44,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:46,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:47,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:47,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 05:12:47,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:12:47,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:12:47,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:47,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:47,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:12:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 05:12:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:12:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,059 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:48,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:48,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 05:12:48,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:48,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:48,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:48,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:48,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:48,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:48,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:48,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:48,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:48,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:48,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:48,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:48,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:48,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:48,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:48,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:48,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:48,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 05:12:48,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:12:48,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:12:48,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:12:48,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:12:48,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:12:48,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:12:48,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:12:48,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:12:48,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:12:48,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:48,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:48,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:12:48,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 05:12:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:48,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:48,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 05:12:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:48,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:48,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:48,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:48,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:48,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:48,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:48,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:48,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:48,402 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 05:12:48,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940455678] [2020-09-25 05:12:48,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:48,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:12:48,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132917038] [2020-09-25 05:12:48,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:12:48,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:48,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:12:48,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:12:48,405 INFO L87 Difference]: Start difference. First operand 253 states and 272 transitions. Second operand 8 states. [2020-09-25 05:12:48,917 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:50,656 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:51,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:51,793 INFO L93 Difference]: Finished difference Result 650 states and 780 transitions. [2020-09-25 05:12:51,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 05:12:51,794 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 05:12:51,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:51,799 INFO L225 Difference]: With dead ends: 650 [2020-09-25 05:12:51,799 INFO L226 Difference]: Without dead ends: 512 [2020-09-25 05:12:51,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-09-25 05:12:51,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-09-25 05:12:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 371. [2020-09-25 05:12:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 05:12:51,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 401 transitions. [2020-09-25 05:12:51,861 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 401 transitions. Word has length 175 [2020-09-25 05:12:51,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:51,862 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 401 transitions. [2020-09-25 05:12:51,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:12:51,862 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 401 transitions. [2020-09-25 05:12:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 05:12:51,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:51,865 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] [2020-09-25 05:12:51,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:12:51,865 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:51,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:51,866 INFO L82 PathProgramCache]: Analyzing trace with hash -492298253, now seen corresponding path program 1 times [2020-09-25 05:12:51,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:51,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562969420] [2020-09-25 05:12:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:53,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:56,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:56,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:56,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 05:12:56,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:12:56,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 05:12:56,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:56,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:56,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:56,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:12:56,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 05:12:56,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,252 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:57,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:57,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 05:12:57,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:57,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:57,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:57,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:57,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:57,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:57,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:57,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:57,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:57,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:57,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:57,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:57,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:57,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:57,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:57,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:57,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:57,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:12:57,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:57,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:12:57,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 05:12:57,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:57,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:12:57,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:57,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:12:57,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:12:57,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:12:57,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:12:57,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:12:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:12:57,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:57,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:12:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:57,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:57,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:57,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 05:12:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:57,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:57,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:57,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 05:12:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:57,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:57,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:57,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:57,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:57,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:57,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:57,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:57,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:57,619 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 05:12:57,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562969420] [2020-09-25 05:12:57,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:57,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:12:57,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049988265] [2020-09-25 05:12:57,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:12:57,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:57,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:12:57,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:12:57,622 INFO L87 Difference]: Start difference. First operand 371 states and 401 transitions. Second operand 7 states. [2020-09-25 05:12:58,173 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:01,189 INFO L93 Difference]: Finished difference Result 988 states and 1268 transitions. [2020-09-25 05:13:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:13:01,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-25 05:13:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:01,197 INFO L225 Difference]: With dead ends: 988 [2020-09-25 05:13:01,197 INFO L226 Difference]: Without dead ends: 985 [2020-09-25 05:13:01,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:13:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2020-09-25 05:13:01,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 635. [2020-09-25 05:13:01,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-25 05:13:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 706 transitions. [2020-09-25 05:13:01,311 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 706 transitions. Word has length 199 [2020-09-25 05:13:01,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:01,311 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 706 transitions. [2020-09-25 05:13:01,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:13:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 706 transitions. [2020-09-25 05:13:01,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-09-25 05:13:01,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:01,317 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-09-25 05:13:01,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:13:01,318 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:01,318 INFO L82 PathProgramCache]: Analyzing trace with hash 459920238, now seen corresponding path program 1 times [2020-09-25 05:13:01,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:01,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113590567] [2020-09-25 05:13:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:01,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:01,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:01,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:02,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:03,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking...