/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_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:13:27,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:13:27,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:13:27,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:13:27,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:13:27,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:13:27,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:13:27,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:13:27,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:13:27,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:13:27,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:13:27,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:13:27,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:13:27,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:13:27,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:13:27,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:13:27,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:13:27,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:13:27,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:13:27,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:13:27,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:13:27,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:13:27,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:13:27,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:13:27,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:13:27,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:13:27,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:13:27,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:13:27,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:13:27,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:13:27,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:13:27,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:13:27,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:13:27,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:13:27,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:13:27,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:13:27,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:13:27,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:13:27,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:13:27,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:13:27,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:13:27,745 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 14:13:27,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:13:27,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:13:27,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:13:27,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:13:27,776 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:13:27,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:13:27,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:13:27,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:13:27,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:13:27,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:13:27,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:13:27,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:13:27,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:13:27,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:13:27,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:13:27,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:13:27,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:13:27,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:13:27,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:13:27,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:13:27,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:13:27,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:27,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:13:27,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:13:27,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:13:27,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:13:27,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:13:27,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:13:27,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:13:27,783 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 14:13:28,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:13:28,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:13:28,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:13:28,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:13:28,359 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:13:28,360 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-25 14:13:28,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13d36088f/846553ba2f264c9dad0424d29f37ca64/FLAG919c474ac [2020-09-25 14:13:29,034 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:13:29,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-25 14:13:29,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13d36088f/846553ba2f264c9dad0424d29f37ca64/FLAG919c474ac [2020-09-25 14:13:29,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13d36088f/846553ba2f264c9dad0424d29f37ca64 [2020-09-25 14:13:29,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:13:29,301 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:13:29,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:29,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:13:29,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:13:29,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:29,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29, skipping insertion in model container [2020-09-25 14:13:29,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:29,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:13:29,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:13:29,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:29,737 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:13:29,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:29,986 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:13:29,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29 WrapperNode [2020-09-25 14:13:29,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:29,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:13:29,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:13:29,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:13:30,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:30,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:30,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:30,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:30,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:30,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:30,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (1/1) ... [2020-09-25 14:13:30,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:13:30,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:13:30,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:13:30,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:13:30,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (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 14:13:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:13:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:13:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:13:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:13:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:13:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:13:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:13:30,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:13:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:13:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:13:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:13:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:13:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:13:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:13:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:13:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:13:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:13:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:13:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:13:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:13:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:13:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:13:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:13:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:13:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:13:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:13:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:13:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:13:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:13:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:13:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:13:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:13:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:13:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:13:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:13:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:13:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:13:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:13:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:13:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:13:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:13:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:13:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:13:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:13:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:13:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:13:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:13:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:13:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:13:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:13:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:13:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:13:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:13:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:13:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:13:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:13:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:13:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:13:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:13:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:13:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:13:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:13:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:13:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:13:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:13:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:13:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:13:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:13:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:13:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:13:31,396 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:13:31,396 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:13:31,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:31 BoogieIcfgContainer [2020-09-25 14:13:31,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:13:31,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:13:31,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:13:31,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:13:31,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:13:29" (1/3) ... [2020-09-25 14:13:31,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25328ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:31, skipping insertion in model container [2020-09-25 14:13:31,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:29" (2/3) ... [2020-09-25 14:13:31,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25328ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:31, skipping insertion in model container [2020-09-25 14:13:31,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:31" (3/3) ... [2020-09-25 14:13:31,414 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-09-25 14:13:31,426 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:13:31,438 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:13:31,460 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:13:31,497 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:13:31,497 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:13:31,497 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:13:31,498 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:13:31,498 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:13:31,498 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:13:31,498 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:13:31,498 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:13:31,529 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 14:13:31,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:13:31,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:31,549 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 14:13:31,549 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:31,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1378033390, now seen corresponding path program 1 times [2020-09-25 14:13:31,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:31,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44344559] [2020-09-25 14:13:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:34,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:36,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:36,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:36,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:13:36,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:13:36,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 14:13:36,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:36,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:13:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:13:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:13:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 14:13:37,557 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:37,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:37,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:37,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:37,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:37,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 14:13:37,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:37,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:13:37,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:38,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:38,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:38,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:38,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:38,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:38,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:38,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:38,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:38,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:38,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:38,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:38,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:38,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:38,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:38,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:38,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:38,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:38,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:38,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:38,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:38,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:38,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:13:38,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:38,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:38,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:38,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:38,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:38,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:38,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:38,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:38,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:38,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:38,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:38,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:38,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:38,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:38,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:38,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:38,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:38,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:38,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:38,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:38,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:38,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:13:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:38,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:38,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:38,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:38,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:38,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:38,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:38,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:38,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:38,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:38,187 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 14:13:38,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44344559] [2020-09-25 14:13:38,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:38,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:13:38,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239636819] [2020-09-25 14:13:38,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:13:38,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:38,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:13:38,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:13:38,228 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 4 states. [2020-09-25 14:13:38,872 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:40,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:40,991 INFO L93 Difference]: Finished difference Result 650 states and 785 transitions. [2020-09-25 14:13:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:13:40,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:13:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:41,033 INFO L225 Difference]: With dead ends: 650 [2020-09-25 14:13:41,033 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 14:13:41,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:13:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 14:13:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 384. [2020-09-25 14:13:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 14:13:41,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 425 transitions. [2020-09-25 14:13:41,193 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 425 transitions. Word has length 142 [2020-09-25 14:13:41,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:41,195 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 425 transitions. [2020-09-25 14:13:41,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:13:41,196 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 425 transitions. [2020-09-25 14:13:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:13:41,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:41,206 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] [2020-09-25 14:13:41,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:13:41,207 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:41,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1453924306, now seen corresponding path program 1 times [2020-09-25 14:13:41,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:41,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777399859] [2020-09-25 14:13:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:41,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:41,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:45,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:13:46,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:13:46,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 14:13:46,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:13:46,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:13:46,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 14:13:46,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,737 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:46,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:47,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 14:13:47,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:13:47,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:47,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:47,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:47,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:47,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:47,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:47,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:47,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:47,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:13:47,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:47,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:47,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:47,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:13:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:13:47,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:13:47,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:47,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:13:47,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:47,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:47,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:47,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:13:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:47,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:13:47,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:47,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:13:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:47,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:47,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:13:47,273 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 14:13:47,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777399859] [2020-09-25 14:13:47,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:47,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:13:47,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260189684] [2020-09-25 14:13:47,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:13:47,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:47,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:13:47,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:13:47,279 INFO L87 Difference]: Start difference. First operand 384 states and 425 transitions. Second operand 9 states. [2020-09-25 14:13:47,787 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:49,036 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:49,374 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:49,799 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:50,208 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:13:50,578 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:13:51,163 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:51,496 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:51,912 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:53,459 INFO L93 Difference]: Finished difference Result 1140 states and 1413 transitions. [2020-09-25 14:13:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:13:53,460 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 14:13:53,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:53,469 INFO L225 Difference]: With dead ends: 1140 [2020-09-25 14:13:53,469 INFO L226 Difference]: Without dead ends: 819 [2020-09-25 14:13:53,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:13:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-09-25 14:13:53,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 611. [2020-09-25 14:13:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-25 14:13:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 684 transitions. [2020-09-25 14:13:53,598 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 684 transitions. Word has length 151 [2020-09-25 14:13:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:53,599 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 684 transitions. [2020-09-25 14:13:53,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:13:53,600 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 684 transitions. [2020-09-25 14:13:53,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:13:53,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:53,604 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] [2020-09-25 14:13:53,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:13:53,605 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:53,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:53,605 INFO L82 PathProgramCache]: Analyzing trace with hash -966583248, now seen corresponding path program 1 times [2020-09-25 14:13:53,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:53,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546587445] [2020-09-25 14:13:53,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:53,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:53,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:58,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:58,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:13:58,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:13:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 14:13:58,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:58,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:13:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:13:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 14:13:58,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:58,985 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:58,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:59,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 14:13:59,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:59,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:13:59,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:59,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:59,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:59,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:59,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:59,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:59,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:59,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:13:59,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:59,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:59,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:59,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:59,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:59,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:59,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:13:59,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:13:59,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:59,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:13:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:13:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:13:59,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:13:59,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:13:59,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:13:59,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:13:59,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:59,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:59,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:59,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:59,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:59,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:13:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:59,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:59,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:59,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:13:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:59,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:59,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:59,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:59,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:59,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:59,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:59,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:59,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:59,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:59,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:59,536 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 14:13:59,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546587445] [2020-09-25 14:13:59,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:59,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:13:59,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045609752] [2020-09-25 14:13:59,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:13:59,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:59,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:13:59,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:13:59,539 INFO L87 Difference]: Start difference. First operand 611 states and 684 transitions. Second operand 7 states. [2020-09-25 14:14:00,049 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:01,881 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:02,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:02,860 INFO L93 Difference]: Finished difference Result 1811 states and 2217 transitions. [2020-09-25 14:14:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:14:02,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-09-25 14:14:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:02,871 INFO L225 Difference]: With dead ends: 1811 [2020-09-25 14:14:02,872 INFO L226 Difference]: Without dead ends: 1310 [2020-09-25 14:14:02,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:14:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2020-09-25 14:14:03,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 999. [2020-09-25 14:14:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2020-09-25 14:14:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1128 transitions. [2020-09-25 14:14:03,033 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1128 transitions. Word has length 165 [2020-09-25 14:14:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:03,033 INFO L479 AbstractCegarLoop]: Abstraction has 999 states and 1128 transitions. [2020-09-25 14:14:03,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:14:03,034 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1128 transitions. [2020-09-25 14:14:03,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 14:14:03,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:03,038 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] [2020-09-25 14:14:03,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:14:03,038 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:03,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash 122714309, now seen corresponding path program 1 times [2020-09-25 14:14:03,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:03,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545038632] [2020-09-25 14:14:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:03,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:03,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:14:06,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:14:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2989 [2020-09-25 14:14:06,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:14:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:14:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 14:14:06,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:06,480 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:06,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:06,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 14:14:06,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:14:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:06,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:06,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:06,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:06,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:06,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:06,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:14:06,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:06,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:06,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:06,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:14:06,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:14:06,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:14:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:06,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:06,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:14:06,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:14:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:06,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:14:06,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:14:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:06,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:06,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:06,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:06,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:14:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:06,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:06,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:06,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:06,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:06,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:14:06,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:06,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:06,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:06,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:06,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:07,077 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 14:14:07,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545038632] [2020-09-25 14:14:07,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:07,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:14:07,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486353441] [2020-09-25 14:14:07,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:14:07,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:07,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:14:07,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:14:07,082 INFO L87 Difference]: Start difference. First operand 999 states and 1128 transitions. Second operand 11 states. [2020-09-25 14:14:07,791 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:09,182 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:09,536 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:09,888 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:10,216 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:14:10,526 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:14:11,319 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:11,657 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:12,043 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:13,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:13,406 INFO L93 Difference]: Finished difference Result 1322 states and 1593 transitions. [2020-09-25 14:14:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:14:13,407 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 14:14:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:13,414 INFO L225 Difference]: With dead ends: 1322 [2020-09-25 14:14:13,414 INFO L226 Difference]: Without dead ends: 1319 [2020-09-25 14:14:13,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-09-25 14:14:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2020-09-25 14:14:13,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 999. [2020-09-25 14:14:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2020-09-25 14:14:13,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1126 transitions. [2020-09-25 14:14:13,565 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1126 transitions. Word has length 166 [2020-09-25 14:14:13,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:13,567 INFO L479 AbstractCegarLoop]: Abstraction has 999 states and 1126 transitions. [2020-09-25 14:14:13,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:14:13,567 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1126 transitions. [2020-09-25 14:14:13,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 14:14:13,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:13,573 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:14:13,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:14:13,574 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:13,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:13,574 INFO L82 PathProgramCache]: Analyzing trace with hash 17634563, now seen corresponding path program 1 times [2020-09-25 14:14:13,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:13,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779203716] [2020-09-25 14:14:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:13,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:13,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking...