/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:21:11,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:21:11,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:21:11,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:21:11,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:21:11,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:21:11,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:21:11,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:21:11,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:21:11,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:21:11,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:21:11,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:21:11,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:21:11,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:21:11,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:21:11,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:21:11,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:21:11,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:21:11,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:21:11,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:21:11,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:21:11,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:21:11,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:21:11,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:21:11,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:21:11,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:21:11,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:21:11,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:21:11,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:21:11,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:21:11,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:21:11,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:21:11,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:21:11,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:21:11,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:21:11,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:21:11,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:21:11,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:21:11,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:21:11,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:21:11,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:21:11,746 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 14:21:11,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:21:11,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:21:11,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:21:11,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:21:11,793 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:21:11,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:21:11,794 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:21:11,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:21:11,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:21:11,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:21:11,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:21:11,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:21:11,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:21:11,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:21:11,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:21:11,797 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:21:11,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:21:11,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:21:11,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:21:11,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:21:11,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:21:11,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:21:11,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:21:11,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:21:11,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:21:11,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:21:11,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:21:11,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:21:11,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:21:11,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:21:12,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:21:12,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:21:12,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:21:12,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:21:12,267 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:21:12,268 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-09-25 14:21:12,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90b4dec16/40ef96b2dc8f4269b809fb8f8f9c1ce5/FLAG5ebe5c2a3 [2020-09-25 14:21:12,980 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:21:12,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2020-09-25 14:21:12,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90b4dec16/40ef96b2dc8f4269b809fb8f8f9c1ce5/FLAG5ebe5c2a3 [2020-09-25 14:21:13,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90b4dec16/40ef96b2dc8f4269b809fb8f8f9c1ce5 [2020-09-25 14:21:13,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:21:13,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:21:13,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:13,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:21:13,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:21:13,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:13" (1/1) ... [2020-09-25 14:21:13,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36dab12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:13, skipping insertion in model container [2020-09-25 14:21:13,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:13" (1/1) ... [2020-09-25 14:21:13,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:21:13,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:21:13,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:13,800 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:21:14,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:21:14,085 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:21:14,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14 WrapperNode [2020-09-25 14:21:14,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:21:14,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:21:14,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:21:14,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:21:14,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (1/1) ... [2020-09-25 14:21:14,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (1/1) ... [2020-09-25 14:21:14,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (1/1) ... [2020-09-25 14:21:14,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (1/1) ... [2020-09-25 14:21:14,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (1/1) ... [2020-09-25 14:21:14,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (1/1) ... [2020-09-25 14:21:14,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (1/1) ... [2020-09-25 14:21:14,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:21:14,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:21:14,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:21:14,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:21:14,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (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 14:21:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:21:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:21:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:21:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:21:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:21:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:21:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:21:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:21:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:21:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:21:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:21:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:21:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:21:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:21:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:21:14,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:21:14,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:21:14,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:21:14,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:21:14,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:21:14,285 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:21:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:21:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:21:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:21:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:21:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:21:14,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:14,287 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:21:14,287 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:21:14,287 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:21:14,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:21:14,287 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:21:14,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:21:14,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:21:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:21:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:21:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:21:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:21:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:21:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:21:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:21:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:21:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:21:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:21:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:21:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:21:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:21:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:21:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:21:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:21:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:21:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:21:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:21:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:21:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:21:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:21:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:21:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:21:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:21:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:21:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:21:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:21:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:21:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:21:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:21:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:21:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:21:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:21:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:21:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:21:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:21:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:21:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:21:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:21:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:21:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:21:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:21:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:21:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:21:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:21:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:21:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:21:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:21:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:21:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:21:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:21:15,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:21:15,427 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:21:15,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:15 BoogieIcfgContainer [2020-09-25 14:21:15,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:21:15,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:21:15,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:21:15,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:21:15,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:13" (1/3) ... [2020-09-25 14:21:15,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f85580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:15, skipping insertion in model container [2020-09-25 14:21:15,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:14" (2/3) ... [2020-09-25 14:21:15,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f85580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:15, skipping insertion in model container [2020-09-25 14:21:15,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:15" (3/3) ... [2020-09-25 14:21:15,444 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product21.cil.c [2020-09-25 14:21:15,455 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:21:15,466 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:21:15,488 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:21:15,519 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:21:15,519 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:21:15,519 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:21:15,519 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:21:15,519 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:21:15,519 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:21:15,520 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:21:15,520 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:21:15,548 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-25 14:21:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:21:15,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:15,567 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 14:21:15,567 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:15,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:15,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1301748271, now seen corresponding path program 1 times [2020-09-25 14:21:15,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:15,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376032316] [2020-09-25 14:21:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:16,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:16,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:18,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:18,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:20,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:20,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:21:20,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:21:20,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 14:21:20,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:20,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:20,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:20,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:21:20,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 14:21:20,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:21:21,401 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:21,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:21,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:21,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:21,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:21,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:21,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 14:21:21,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:21,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:21:21,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:21,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:21,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:21,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:21,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:21,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:21,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:21,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:21,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:21,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:21,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:21,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:21,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:21,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:21,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:21,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:21,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:21,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:21,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:21,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:21,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:21,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:21:21,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:21,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:21,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:21,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:21,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:21,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:21,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:21,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:21,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:21:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:21,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:21,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:21,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:21,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:21,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:21,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:21,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:21,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:21:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:21,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:21,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:21,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:21,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:21,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:21,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:21,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:21,972 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 14:21:21,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376032316] [2020-09-25 14:21:21,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:21,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:21:21,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035214815] [2020-09-25 14:21:21,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:21:21,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:22,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:21:22,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:21:22,008 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 4 states. [2020-09-25 14:21:22,563 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:23,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:23,647 INFO L93 Difference]: Finished difference Result 465 states and 554 transitions. [2020-09-25 14:21:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:21:23,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:21:23,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:23,677 INFO L225 Difference]: With dead ends: 465 [2020-09-25 14:21:23,677 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 14:21:23,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:21:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 14:21:23,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249. [2020-09-25 14:21:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 14:21:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-25 14:21:23,818 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 142 [2020-09-25 14:21:23,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:23,818 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-25 14:21:23,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:21:23,820 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-25 14:21:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 14:21:23,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:23,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:21:23,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:21:23,827 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:23,830 INFO L82 PathProgramCache]: Analyzing trace with hash 898133333, now seen corresponding path program 1 times [2020-09-25 14:21:23,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:23,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828505769] [2020-09-25 14:21:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:24,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:25,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:25,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:25,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:27,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:28,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:28,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 14:21:28,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:21:28,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 14:21:28,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:28,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:21:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:21:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 14:21:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,266 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:29,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 14:21:29,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:21:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:29,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:29,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:29,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:29,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:29,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:29,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:29,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:29,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:29,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:29,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:29,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:29,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:21:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:21:29,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:29,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:21:29,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:29,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:29,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:29,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:29,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:29,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:29,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:29,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:29,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:29,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:29,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:21:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:29,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 14:21:29,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:29,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:21:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:29,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:29,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:29,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:29,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:29,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:29,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:29,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:29,873 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 14:21:29,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828505769] [2020-09-25 14:21:29,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:29,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:21:29,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144970663] [2020-09-25 14:21:29,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:21:29,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:29,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:21:29,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:21:29,881 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 9 states. [2020-09-25 14:21:30,442 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:31,968 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:32,297 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:32,655 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:33,015 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:33,298 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:33,587 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:33,880 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:35,349 INFO L93 Difference]: Finished difference Result 617 states and 753 transitions. [2020-09-25 14:21:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:21:35,350 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2020-09-25 14:21:35,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:35,358 INFO L225 Difference]: With dead ends: 617 [2020-09-25 14:21:35,358 INFO L226 Difference]: Without dead ends: 478 [2020-09-25 14:21:35,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:21:35,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-25 14:21:35,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 382. [2020-09-25 14:21:35,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-25 14:21:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 430 transitions. [2020-09-25 14:21:35,437 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 430 transitions. Word has length 156 [2020-09-25 14:21:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:35,438 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 430 transitions. [2020-09-25 14:21:35,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:21:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 430 transitions. [2020-09-25 14:21:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 14:21:35,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:35,442 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] [2020-09-25 14:21:35,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:21:35,443 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:35,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:35,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1450357178, now seen corresponding path program 1 times [2020-09-25 14:21:35,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:35,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929935695] [2020-09-25 14:21:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:35,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:36,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:36,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:40,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:40,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 14:21:40,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:40,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 14:21:40,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:40,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:21:40,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:21:40,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 14:21:40,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:40,869 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:40,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:40,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:41,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 14:21:41,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:21:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:41,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:41,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:41,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:41,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:41,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:41,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:41,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:41,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:41,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:41,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:41,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 14:21:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:41,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:21:41,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:21:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:21:41,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:21:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:21:41,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:41,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:21:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:41,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:41,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:41,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:41,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:41,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 14:21:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:41,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:41,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:21:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 14:21:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:41,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:41,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:41,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:41,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:21:41,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:41,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:41,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:41,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:41,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:41,489 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 14:21:41,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929935695] [2020-09-25 14:21:41,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:41,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 14:21:41,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757943882] [2020-09-25 14:21:41,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:21:41,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:41,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:21:41,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:21:41,493 INFO L87 Difference]: Start difference. First operand 382 states and 430 transitions. Second operand 12 states. [2020-09-25 14:21:42,046 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:43,269 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:44,426 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:44,802 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:45,410 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:45,795 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:46,658 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:47,036 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:47,524 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:47,946 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:48,281 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:21:50,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:50,282 INFO L93 Difference]: Finished difference Result 841 states and 1067 transitions. [2020-09-25 14:21:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 14:21:50,283 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2020-09-25 14:21:50,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:50,290 INFO L225 Difference]: With dead ends: 841 [2020-09-25 14:21:50,291 INFO L226 Difference]: Without dead ends: 689 [2020-09-25 14:21:50,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=201, Invalid=791, Unknown=0, NotChecked=0, Total=992 [2020-09-25 14:21:50,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-25 14:21:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 499. [2020-09-25 14:21:50,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-09-25 14:21:50,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 565 transitions. [2020-09-25 14:21:50,396 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 565 transitions. Word has length 170 [2020-09-25 14:21:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:50,397 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 565 transitions. [2020-09-25 14:21:50,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:21:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 565 transitions. [2020-09-25 14:21:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 14:21:50,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:21:50,400 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] [2020-09-25 14:21:50,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:21:50,401 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:21:50,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:21:50,401 INFO L82 PathProgramCache]: Analyzing trace with hash -2057660916, now seen corresponding path program 1 times [2020-09-25 14:21:50,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:21:50,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012387620] [2020-09-25 14:21:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:21:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:50,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:50,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:55,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:55,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 14:21:55,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:21:55,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5108 [2020-09-25 14:21:55,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:55,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:21:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:21:55,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 14:21:55,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:55,881 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:21:55,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:21:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:55,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:21:56,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 14:21:56,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:56,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:56,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:21:56,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:21:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:56,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:21:56,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:56,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:21:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:56,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:56,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:56,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:56,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:21:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:56,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:21:56,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:56,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:21:56,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:21:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:56,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:56,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:21:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:21:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 14:21:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:21:56,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:21:56,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:21:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:21:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:21:56,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:21:56,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:56,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:21:56,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:56,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:21:56,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:56,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:56,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:21:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:21:56,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:56,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:21:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:56,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:21:56,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 14:21:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:56,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:21:56,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:56,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:56,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:56,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 14:21:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:21:56,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:21:56,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:21:56,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:21:56,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:21:56,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:21:56,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:21:56,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:21:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:21:56,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:21:56,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:21:56,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:21:56,495 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 14:21:56,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012387620] [2020-09-25 14:21:56,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:21:56,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:21:56,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909702382] [2020-09-25 14:21:56,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:21:56,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:21:56,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:21:56,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:21:56,499 INFO L87 Difference]: Start difference. First operand 499 states and 565 transitions. Second operand 6 states. [2020-09-25 14:21:57,269 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:21:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:21:57,923 INFO L93 Difference]: Finished difference Result 664 states and 778 transitions. [2020-09-25 14:21:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:21:57,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-09-25 14:21:57,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:21:57,924 INFO L225 Difference]: With dead ends: 664 [2020-09-25 14:21:57,924 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:21:57,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:21:57,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:21:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:21:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:21:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:21:57,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-09-25 14:21:57,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:21:57,928 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:21:57,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:21:57,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:21:57,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:21:57,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:21:57,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:21:58,130 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:58,314 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:58,494 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:58,661 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:21:58,828 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:21:59,239 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 14:21:59,613 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 14:21:59,987 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-09-25 14:22:00,351 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-09-25 14:22:00,714 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192