/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_spec4_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:59:41,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:59:41,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:59:41,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:59:41,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:59:41,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:59:41,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:59:41,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:59:41,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:59:41,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:59:41,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:59:41,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:59:41,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:59:41,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:59:41,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:59:41,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:59:41,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:59:41,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:59:41,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:59:41,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:59:41,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:59:41,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:59:41,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:59:41,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:59:41,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:59:41,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:59:41,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:59:41,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:59:41,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:59:41,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:59:41,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:59:41,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:59:41,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:59:41,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:59:41,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:59:41,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:59:41,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:59:41,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:59:41,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:59:41,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:59:41,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:59:41,698 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 10:59:41,722 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:59:41,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:59:41,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:59:41,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:59:41,724 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:59:41,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:59:41,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:59:41,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:59:41,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:59:41,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:59:41,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:59:41,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:59:41,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:59:41,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:59:41,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:59:41,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:59:41,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:59:41,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:59:41,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:59:41,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:59:41,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:59:41,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:59:41,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:59:41,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:59:41,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:59:41,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:59:41,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:59:41,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:59:41,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:59:41,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:59:42,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:59:42,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:59:42,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:59:42,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:59:42,197 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:59:42,198 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-25 10:59:42,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ec7dfe18/54bf717251d24c7dae4025ef7939ad35/FLAG3cc02741b [2020-09-25 10:59:42,881 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:59:42,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-25 10:59:42,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ec7dfe18/54bf717251d24c7dae4025ef7939ad35/FLAG3cc02741b [2020-09-25 10:59:43,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ec7dfe18/54bf717251d24c7dae4025ef7939ad35 [2020-09-25 10:59:43,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:59:43,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:59:43,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:43,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:59:43,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:59:43,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:43,191 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 10:59:43, skipping insertion in model container [2020-09-25 10:59:43,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:43,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:59:43,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:59:43,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:43,838 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:59:43,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:59:43,980 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:59:43,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43 WrapperNode [2020-09-25 10:59:43,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:59:43,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:59:43,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:59:43,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:59:43,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:43,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:44,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:44,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:44,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:44,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:44,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (1/1) ... [2020-09-25 10:59:44,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:59:44,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:59:44,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:59:44,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:59:44,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (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 10:59:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:59:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:59:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:59:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:59:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:59:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:59:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:59:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:59:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:59:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:59:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:59:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:59:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:59:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:59:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:59:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:59:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:59:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:59:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:59:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:59:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:59:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:59:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:59:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:59:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:59:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:59:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:59:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:59:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:59:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:59:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:59:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:59:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:59:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:59:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:59:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:59:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:59:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:59:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:59:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:59:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:59:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:59:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:59:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:59:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:59:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:59:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:59:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:59:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:59:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:59:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:59:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:59:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:59:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:59:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:59:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:59:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:59:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:59:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:59:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:59:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:59:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:59:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:59:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:59:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:59:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 10:59:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:59:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:59:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:59:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:59:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:59:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:59:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:59:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:59:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:59:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:59:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:59:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:59:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:59:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:59:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:59:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:59:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:59:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:59:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:59:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:59:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:59:45,324 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:59:45,324 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:59:45,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:45 BoogieIcfgContainer [2020-09-25 10:59:45,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:59:45,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:59:45,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:59:45,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:59:45,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:59:43" (1/3) ... [2020-09-25 10:59:45,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdc7bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:45, skipping insertion in model container [2020-09-25 10:59:45,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:59:43" (2/3) ... [2020-09-25 10:59:45,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdc7bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:59:45, skipping insertion in model container [2020-09-25 10:59:45,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:59:45" (3/3) ... [2020-09-25 10:59:45,346 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-09-25 10:59:45,357 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:59:45,368 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:59:45,390 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:59:45,424 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:59:45,424 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:59:45,424 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:59:45,424 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:59:45,425 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:59:45,425 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:59:45,425 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:59:45,425 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:59:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 10:59:45,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:59:45,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:45,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:59:45,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:45,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1971275482, now seen corresponding path program 1 times [2020-09-25 10:59:45,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:45,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430323494] [2020-09-25 10:59:45,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:46,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:46,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:47,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:48,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:50,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:50,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:59:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:50,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 10:59:50,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:50,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:59:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:59:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:59:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:59:51,453 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:51,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:51,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:51,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:51,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:51,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:51,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-25 10:59:51,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:51,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:59:51,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:51,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:51,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:51,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:51,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:59:51,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:51,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:51,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:51,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:52,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:59:52,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:52,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:52,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:59:52,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:52,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:52,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:52,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:59:52,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:52,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:59:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:52,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 10:59:52,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:52,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:59:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:52,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:52,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:52,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:52,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:52,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:59:52,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:52,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:52,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:52,198 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 10:59:52,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430323494] [2020-09-25 10:59:52,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:52,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:59:52,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209111415] [2020-09-25 10:59:52,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:59:52,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:52,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:59:52,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:59:52,250 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 8 states. [2020-09-25 10:59:53,095 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:54,107 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:54,486 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:54,875 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:55,220 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:55,560 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:55,887 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:56,153 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:58,101 INFO L93 Difference]: Finished difference Result 643 states and 790 transitions. [2020-09-25 10:59:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:59:58,104 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:59:58,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:58,135 INFO L225 Difference]: With dead ends: 643 [2020-09-25 10:59:58,135 INFO L226 Difference]: Without dead ends: 444 [2020-09-25 10:59:58,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:59:58,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-09-25 10:59:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 400. [2020-09-25 10:59:58,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-25 10:59:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 450 transitions. [2020-09-25 10:59:58,337 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 450 transitions. Word has length 142 [2020-09-25 10:59:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:58,338 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 450 transitions. [2020-09-25 10:59:58,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:59:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 450 transitions. [2020-09-25 10:59:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:59:58,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:58,345 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 10:59:58,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:59:58,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:58,346 INFO L82 PathProgramCache]: Analyzing trace with hash -619705205, now seen corresponding path program 1 times [2020-09-25 10:59:58,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:58,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387364941] [2020-09-25 10:59:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:58,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:59,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 11:00:03,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:00:03,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 11:00:03,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:00:03,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:00:03,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 11:00:03,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,677 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:03,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:03,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:03,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:03,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:03,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 11:00:03,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:03,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:00:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:03,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:03,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:04,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:04,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:04,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:04,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:04,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:04,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:04,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:04,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:04,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:04,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:04,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:04,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:04,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:04,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:04,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:04,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:04,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:04,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:04,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:04,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:04,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:04,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:04,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:00:04,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:04,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:04,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:04,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:04,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:04,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:04,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:04,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:04,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:04,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:04,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:04,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:04,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:04,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 11:00:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:04,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:04,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:04,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:04,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:04,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:04,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:04,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:04,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:04,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:04,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:00:04,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:04,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 11:00:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:04,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:04,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:04,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:04,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:04,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:04,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:04,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:00:04,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:00:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:04,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:04,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:04,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:04,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:04,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:04,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:04,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:04,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:04,116 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 11:00:04,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387364941] [2020-09-25 11:00:04,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:04,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:00:04,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744149935] [2020-09-25 11:00:04,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:00:04,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:04,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:00:04,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:00:04,125 INFO L87 Difference]: Start difference. First operand 400 states and 450 transitions. Second operand 5 states. [2020-09-25 11:00:04,620 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:05,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:05,938 INFO L93 Difference]: Finished difference Result 741 states and 888 transitions. [2020-09-25 11:00:05,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:00:05,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 11:00:05,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:05,949 INFO L225 Difference]: With dead ends: 741 [2020-09-25 11:00:05,949 INFO L226 Difference]: Without dead ends: 451 [2020-09-25 11:00:05,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:00:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-25 11:00:06,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 396. [2020-09-25 11:00:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-09-25 11:00:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 441 transitions. [2020-09-25 11:00:06,075 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 441 transitions. Word has length 148 [2020-09-25 11:00:06,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:06,076 INFO L479 AbstractCegarLoop]: Abstraction has 396 states and 441 transitions. [2020-09-25 11:00:06,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:00:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 441 transitions. [2020-09-25 11:00:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 11:00:06,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:06,086 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] [2020-09-25 11:00:06,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:00:06,086 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:06,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:06,087 INFO L82 PathProgramCache]: Analyzing trace with hash 799967418, now seen corresponding path program 1 times [2020-09-25 11:00:06,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:06,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235500166] [2020-09-25 11:00:06,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:06,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:06,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:06,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:08,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:09,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:10,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 11:00:11,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:00:11,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 11:00:11,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 11:00:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:00:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 11:00:11,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:11,597 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:11,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:11,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:11,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 11:00:11,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:00:11,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:11,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:11,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:11,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:11,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:11,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:11,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:11,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:11,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:11,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:11,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:11,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:11,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:11,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:11,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:11,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:11,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:11,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:11,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 11:00:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:11,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:11,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:11,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:11,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:00:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:00:11,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:11,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:00:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:11,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:11,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:11,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:00:11,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:11,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:11,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:11,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:11,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:11,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:11,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:00:11,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:12,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:00:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:12,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:12,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:12,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:00:12,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:12,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:00:12,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:12,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:12,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:12,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:00:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:12,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:12,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:12,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:12,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:00:12,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:12,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:12,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:12,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:12,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:12,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:12,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:12,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:12,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:00:12,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:12,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:12,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 11:00:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:12,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:12,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:12,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:12,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:00:12,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:12,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:00:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:12,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 11:00:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:12,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:12,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:12,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:12,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:12,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:12,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:12,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:12,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:12,131 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 11:00:12,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235500166] [2020-09-25 11:00:12,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:12,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 11:00:12,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34367208] [2020-09-25 11:00:12,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 11:00:12,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:12,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 11:00:12,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 11:00:12,134 INFO L87 Difference]: Start difference. First operand 396 states and 441 transitions. Second operand 13 states. [2020-09-25 11:00:12,760 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:13,744 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:14,797 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:15,125 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:15,622 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:15,994 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:00:16,289 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:00:16,595 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:16,878 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:17,608 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:00:18,242 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:00:18,576 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:00:18,951 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:19,315 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:00:19,636 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:00:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:00:23,247 INFO L93 Difference]: Finished difference Result 1177 states and 1722 transitions. [2020-09-25 11:00:23,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-25 11:00:23,248 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 174 [2020-09-25 11:00:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:00:23,264 INFO L225 Difference]: With dead ends: 1177 [2020-09-25 11:00:23,265 INFO L226 Difference]: Without dead ends: 1019 [2020-09-25 11:00:23,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2020-09-25 11:00:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2020-09-25 11:00:23,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 530. [2020-09-25 11:00:23,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-09-25 11:00:23,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 614 transitions. [2020-09-25 11:00:23,415 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 614 transitions. Word has length 174 [2020-09-25 11:00:23,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:00:23,416 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 614 transitions. [2020-09-25 11:00:23,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 11:00:23,417 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 614 transitions. [2020-09-25 11:00:23,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 11:00:23,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:00:23,421 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] [2020-09-25 11:00:23,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:00:23,421 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:00:23,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:00:23,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1007391743, now seen corresponding path program 1 times [2020-09-25 11:00:23,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:00:23,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567132932] [2020-09-25 11:00:23,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:00:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:23,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:23,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:23,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:24,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:28,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:28,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 11:00:28,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:00:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 11:00:28,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:28,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:00:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:00:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 11:00:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:28,864 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:00:28,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:00:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:28,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:00:29,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 11:00:29,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:00:29,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:00:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:29,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:29,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:00:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:29,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:29,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:00:29,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:00:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:29,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:00:29,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:29,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:29,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:00:29,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:29,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:00:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:29,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:29,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:29,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 11:00:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:00:29,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:00:29,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:00:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:29,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:00:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:00:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:00:29,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:00:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:00:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:00:29,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:00:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:00:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:00:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 11:00:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:00:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:29,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:00:29,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:00:29,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:00:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:00:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:00:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:29,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:00:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:00:29,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:29,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:00:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:00:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:00:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:00:29,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 11:00:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:29,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:00:29,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 11:00:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:00:29,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:00:29,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:00:29,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:00:29,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:00:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:00:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:00:29,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:00:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:00:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:00:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:00:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:00:29,484 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 11:00:29,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567132932] [2020-09-25 11:00:29,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:00:29,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:00:29,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709776489] [2020-09-25 11:00:29,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:00:29,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:00:29,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:00:29,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:00:29,487 INFO L87 Difference]: Start difference. First operand 530 states and 614 transitions. Second operand 8 states. [2020-09-25 11:00:30,040 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:00:31,334 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187