/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=WIDEST --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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:03:04,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:03:04,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:03:04,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:03:04,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:03:04,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:03:04,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:03:04,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:03:04,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:03:04,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:03:04,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:03:04,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:03:04,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:03:04,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:03:04,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:03:04,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:03:04,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:03:04,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:03:04,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:03:04,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:03:04,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:03:04,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:03:04,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:03:04,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:03:04,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:03:04,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:03:04,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:03:04,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:03:04,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:03:04,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:03:04,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:03:04,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:03:04,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:03:04,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:03:04,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:03:04,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:03:04,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:03:04,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:03:04,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:03:04,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:03:04,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:03:04,264 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 03:03:04,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:03:04,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:03:04,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:03:04,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:03:04,290 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:03:04,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:03:04,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:03:04,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:03:04,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:03:04,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:03:04,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:03:04,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:03:04,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:03:04,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:03:04,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:03:04,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:03:04,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:03:04,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:03:04,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:03:04,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:03:04,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:03:04,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:03:04,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:03:04,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:03:04,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:03:04,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:03:04,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:03:04,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:03:04,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:03:04,295 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:03:04,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:03:04,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:03:04,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:03:04,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:03:04,766 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:03:04,767 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-25 03:03:04,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b6a0df8f/fd341317cd3042139c40a8f92047fb67/FLAGf01464355 [2020-09-25 03:03:05,503 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:03:05,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-25 03:03:05,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b6a0df8f/fd341317cd3042139c40a8f92047fb67/FLAGf01464355 [2020-09-25 03:03:05,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b6a0df8f/fd341317cd3042139c40a8f92047fb67 [2020-09-25 03:03:05,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:03:05,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:03:05,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:03:05,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:03:05,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:03:05,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:03:05" (1/1) ... [2020-09-25 03:03:05,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:05, skipping insertion in model container [2020-09-25 03:03:05,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:03:05" (1/1) ... [2020-09-25 03:03:05,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:03:05,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:03:06,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:03:06,271 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:03:06,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:03:06,529 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:03:06,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06 WrapperNode [2020-09-25 03:03:06,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:03:06,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:03:06,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:03:06,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:03:06,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (1/1) ... [2020-09-25 03:03:06,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (1/1) ... [2020-09-25 03:03:06,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (1/1) ... [2020-09-25 03:03:06,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (1/1) ... [2020-09-25 03:03:06,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (1/1) ... [2020-09-25 03:03:06,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (1/1) ... [2020-09-25 03:03:06,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (1/1) ... [2020-09-25 03:03:06,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:03:06,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:03:06,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:03:06,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:03:06,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (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 03:03:06,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:03:06,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:03:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:03:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:03:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:03:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:03:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:03:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:03:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:03:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:03:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:03:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:03:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:03:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 03:03:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:03:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:03:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:03:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:03:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:03:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:03:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 03:03:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 03:03:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:03:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:03:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:03:06,748 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:03:06,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:03:06,748 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:03:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:03:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:03:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:03:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:03:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:03:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:03:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 03:03:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:03:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:03:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:03:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:03:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:03:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:03:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:03:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:03:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:03:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:03:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:03:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:03:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:03:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:03:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:03:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:03:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:03:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:03:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:03:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:03:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 03:03:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:03:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:03:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:03:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:03:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:03:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:03:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:03:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 03:03:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:03:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:03:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:03:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:03:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:03:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:03:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:03:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 03:03:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 03:03:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:03:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:03:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:03:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:03:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:03:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:03:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:03:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:03:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:03:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:03:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:03:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:03:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:03:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:03:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:03:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:03:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:03:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:03:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:03:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:03:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:03:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:03:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:03:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:03:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:03:07,936 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:03:07,936 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:03:07,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:03:07 BoogieIcfgContainer [2020-09-25 03:03:07,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:03:07,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:03:07,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:03:07,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:03:07,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:03:05" (1/3) ... [2020-09-25 03:03:07,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1c1b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:03:07, skipping insertion in model container [2020-09-25 03:03:07,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:03:06" (2/3) ... [2020-09-25 03:03:07,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1c1b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:03:07, skipping insertion in model container [2020-09-25 03:03:07,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:03:07" (3/3) ... [2020-09-25 03:03:07,957 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-09-25 03:03:07,970 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:03:07,981 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:03:08,000 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:03:08,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:03:08,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:03:08,033 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:03:08,033 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:03:08,033 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:03:08,033 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:03:08,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:03:08,034 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:03:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2020-09-25 03:03:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 03:03:08,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:03:08,084 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 03:03:08,085 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:03:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:03:08,093 INFO L82 PathProgramCache]: Analyzing trace with hash 344061342, now seen corresponding path program 1 times [2020-09-25 03:03:08,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:03:08,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147378094] [2020-09-25 03:03:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:03:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:08,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:08,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:10,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:11,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:13,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:13,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 03:03:13,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:03:13,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 03:03:13,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:13,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:03:13,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:03:13,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:03:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 03:03:14,019 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:03:14,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:03:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:14,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:14,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:14,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:03:14,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:14,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 03:03:14,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:14,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:14,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:03:14,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:14,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:03:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:14,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:14,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:14,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:14,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:14,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:03:14,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:14,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:14,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:14,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:14,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:03:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:14,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:14,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:14,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:14,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:03:14,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:03:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:14,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:14,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:14,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:14,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:03:14,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:14,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:03:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:03:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:14,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:14,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:14,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:14,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:14,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:03:14,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:14,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:14,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:14,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:14,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:14,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:03:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:14,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:14,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:14,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:14,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 03:03:14,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:03:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:03:14,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:14,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:03:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:14,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:14,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:14,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:14,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:14,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:14,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:03:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:14,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:14,524 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 03:03:14,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147378094] [2020-09-25 03:03:14,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:03:14,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:03:14,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116874833] [2020-09-25 03:03:14,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:03:14,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:03:14,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:03:14,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:03:14,562 INFO L87 Difference]: Start difference. First operand 340 states. Second operand 8 states. [2020-09-25 03:03:15,253 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:03:16,204 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:03:16,512 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:03:16,892 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:03:17,325 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:03:17,628 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:03:17,976 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:03:18,299 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:03:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:03:20,903 INFO L93 Difference]: Finished difference Result 739 states and 898 transitions. [2020-09-25 03:03:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:03:20,906 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 03:03:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:03:20,928 INFO L225 Difference]: With dead ends: 739 [2020-09-25 03:03:20,929 INFO L226 Difference]: Without dead ends: 510 [2020-09-25 03:03:20,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:03:20,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-09-25 03:03:21,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 462. [2020-09-25 03:03:21,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-09-25 03:03:21,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 520 transitions. [2020-09-25 03:03:21,101 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 520 transitions. Word has length 142 [2020-09-25 03:03:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:03:21,102 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 520 transitions. [2020-09-25 03:03:21,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:03:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 520 transitions. [2020-09-25 03:03:21,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 03:03:21,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:03:21,109 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 03:03:21,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:03:21,110 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:03:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:03:21,110 INFO L82 PathProgramCache]: Analyzing trace with hash -927205166, now seen corresponding path program 1 times [2020-09-25 03:03:21,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:03:21,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832200211] [2020-09-25 03:03:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:03:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:21,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:22,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:25,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 03:03:26,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:03:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:03:26,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:03:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:03:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 03:03:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:26,519 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:03:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:03:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:03:26,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 03:03:26,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:03:26,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:03:26,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:03:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:26,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:03:26,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:03:26,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:03:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:26,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:03:26,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:03:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:26,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:03:26,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:03:26,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:26,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:03:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:26,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:03:26,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:26,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 03:03:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:03:26,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:03:26,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:03:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:26,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 03:03:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:26,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:03:26,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:03:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:26,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 03:03:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:26,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:26,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:26,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:26,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:26,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:03:26,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:26,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:03:26,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:03:26,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:03:27,015 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 03:03:27,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832200211] [2020-09-25 03:03:27,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:03:27,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:03:27,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601343752] [2020-09-25 03:03:27,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:03:27,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:03:27,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:03:27,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:03:27,020 INFO L87 Difference]: Start difference. First operand 462 states and 520 transitions. Second operand 9 states. [2020-09-25 03:03:27,559 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:03:29,054 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:03:29,394 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:03:29,745 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:03:30,083 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:03:30,420 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:03:31,151 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:03:31,412 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:03:31,779 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:03:33,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:03:33,194 INFO L93 Difference]: Finished difference Result 1003 states and 1248 transitions. [2020-09-25 03:03:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:03:33,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 03:03:33,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:03:33,207 INFO L225 Difference]: With dead ends: 1003 [2020-09-25 03:03:33,207 INFO L226 Difference]: Without dead ends: 651 [2020-09-25 03:03:33,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:03:33,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-09-25 03:03:33,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 593. [2020-09-25 03:03:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-09-25 03:03:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 693 transitions. [2020-09-25 03:03:33,312 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 693 transitions. Word has length 148 [2020-09-25 03:03:33,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:03:33,313 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 693 transitions. [2020-09-25 03:03:33,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:03:33,313 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 693 transitions. [2020-09-25 03:03:33,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-09-25 03:03:33,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:03:33,320 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:33,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:03:33,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:03:33,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:03:33,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1721953474, now seen corresponding path program 1 times [2020-09-25 03:03:33,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:03:33,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464141842] [2020-09-25 03:03:33,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:03:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:33,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:33,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:33,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:33,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:33,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:34,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:36,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:38,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:38,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-09-25 03:03:38,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:03:38,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 03:03:38,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:03:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:03:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-25 03:03:38,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:38,916 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:03:38,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:03:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:38,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:03:39,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 03:03:39,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:03:39,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:03:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:39,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:03:39,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:39,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:03:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:39,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:39,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:39,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:03:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:39,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:03:39,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:03:39,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:03:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:03:39,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:03:39,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:03:39,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 03:03:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:03:39,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:03:39,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:03:39,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:03:39,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:03:39,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 03:03:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:03:39,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:03:39,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:03:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:03:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:03:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:03:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:03:39,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:03:39,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:03:39,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:39,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:03:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:39,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:39,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:39,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 03:03:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:03:39,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:03:39,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:03:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:03:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:03:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:03:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:03:39,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:03:39,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:03:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:39,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:03:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:39,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:03:39,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:39,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 03:03:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 03:03:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:03:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 03:03:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 03:03:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:03:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:03:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:03:39,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:03:39,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 03:03:39,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:03:39,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:39,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:03:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:03:39,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:03:39,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:03:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:03:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:03:39,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:03:39,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 03:03:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:39,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:03:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:39,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:39,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 03:03:39,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:03:39,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:03:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:03:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:39,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:03:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:40,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:40,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:03:40,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:40,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:40,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:40,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:03:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:40,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:40,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:40,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:40,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:40,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:40,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:40,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:40,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 03:03:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:40,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:40,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:40,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:03:40,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:40,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:40,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:03:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:40,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:03:40,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-25 03:03:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:40,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:40,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:40,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:40,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:40,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:40,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:40,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:03:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:40,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:40,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-09-25 03:03:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:40,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:40,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:03:40,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:03:40,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:03:40,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:03:40,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:03:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:03:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:03:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:03:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:03:40,114 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-25 03:03:40,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464141842] [2020-09-25 03:03:40,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:03:40,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:03:40,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87547384] [2020-09-25 03:03:40,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:03:40,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:03:40,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:03:40,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:03:40,118 INFO L87 Difference]: Start difference. First operand 593 states and 693 transitions. Second operand 11 states. [2020-09-25 03:03:40,609 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:03:41,408 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:03:43,411 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:03:44,132 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:03:49,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:03:49,700 INFO L93 Difference]: Finished difference Result 2001 states and 2813 transitions. [2020-09-25 03:03:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 03:03:49,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 266 [2020-09-25 03:03:49,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:03:49,717 INFO L225 Difference]: With dead ends: 2001 [2020-09-25 03:03:49,717 INFO L226 Difference]: Without dead ends: 1712 [2020-09-25 03:03:49,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2020-09-25 03:03:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2020-09-25 03:03:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1463. [2020-09-25 03:03:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1463 states. [2020-09-25 03:03:49,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1869 transitions. [2020-09-25 03:03:49,973 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1869 transitions. Word has length 266 [2020-09-25 03:03:49,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:03:49,975 INFO L479 AbstractCegarLoop]: Abstraction has 1463 states and 1869 transitions. [2020-09-25 03:03:49,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:03:49,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1869 transitions. [2020-09-25 03:03:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 03:03:49,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:03:49,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:03:49,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:03:49,983 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:03:49,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:03:49,984 INFO L82 PathProgramCache]: Analyzing trace with hash 187606251, now seen corresponding path program 1 times [2020-09-25 03:03:49,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:03:49,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073121723] [2020-09-25 03:03:49,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:03:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:03:50,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:52,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:03:52,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking...