/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:46:47,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:46:47,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:46:47,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:46:47,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:46:47,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:46:47,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:46:47,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:46:47,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:46:47,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:46:47,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:46:47,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:46:47,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:46:47,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:46:47,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:46:47,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:46:47,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:46:47,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:46:47,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:46:47,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:46:47,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:46:47,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:46:47,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:46:47,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:46:47,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:46:47,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:46:47,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:46:47,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:46:47,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:46:47,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:46:47,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:46:47,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:46:47,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:46:47,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:46:47,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:46:47,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:46:47,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:46:47,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:46:47,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:46:47,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:46:47,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:46:47,270 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 [2020-10-13 12:46:47,292 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:46:47,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:46:47,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:46:47,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:46:47,294 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:46:47,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:46:47,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:46:47,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:46:47,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:46:47,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:46:47,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:46:47,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:46:47,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:46:47,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:46:47,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:46:47,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:46:47,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:46:47,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:46:47,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:46:47,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:46:47,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:46:47,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:46:47,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:46:47,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:46:47,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:46:47,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:46:47,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:46:47,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:46:47,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:46:47,299 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:46:47,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:46:47,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:46:47,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:46:47,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:46:47,667 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:46:47,668 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-10-13 12:46:47,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b85438f6f/936875ac16d643e186586e72883a44a1/FLAG4b74c8626 [2020-10-13 12:46:48,224 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:46:48,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-10-13 12:46:48,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b85438f6f/936875ac16d643e186586e72883a44a1/FLAG4b74c8626 [2020-10-13 12:46:48,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b85438f6f/936875ac16d643e186586e72883a44a1 [2020-10-13 12:46:48,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:46:48,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:46:48,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:46:48,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:46:48,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:46:48,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5ae353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48, skipping insertion in model container [2020-10-13 12:46:48,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:46:48,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:46:49,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:46:49,116 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:46:49,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:46:49,234 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:46:49,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49 WrapperNode [2020-10-13 12:46:49,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:46:49,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:46:49,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:46:49,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:46:49,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (1/1) ... [2020-10-13 12:46:49,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (1/1) ... [2020-10-13 12:46:49,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (1/1) ... [2020-10-13 12:46:49,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (1/1) ... [2020-10-13 12:46:49,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (1/1) ... [2020-10-13 12:46:49,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (1/1) ... [2020-10-13 12:46:49,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (1/1) ... [2020-10-13 12:46:49,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:46:49,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:46:49,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:46:49,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:46:49,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (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 [2020-10-13 12:46:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:46:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:46:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:46:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:46:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:46:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:46:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:46:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:46:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:46:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:46:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:46:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:46:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:46:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:46:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:46:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:46:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:46:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:46:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:46:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:46:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:46:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:46:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:46:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:46:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:46:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:46:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:46:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:46:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:46:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:46:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:46:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:46:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:46:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:46:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:46:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:46:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:46:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:46:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-13 12:46:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:46:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:46:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:46:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:46:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:46:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:46:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:46:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:46:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:46:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:46:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:46:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:46:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:46:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:46:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:46:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:46:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:46:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-13 12:46:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:46:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:46:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:46:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:46:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:46:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:46:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:46:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:46:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:46:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:46:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:46:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:46:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:46:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:46:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:46:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:46:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:46:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:46:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:46:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:46:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:46:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:46:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:46:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:46:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:46:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:46:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:46:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:46:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:46:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:46:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:46:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:46:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:46:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:46:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:46:50,511 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:46:50,512 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:46:50,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:50 BoogieIcfgContainer [2020-10-13 12:46:50,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:46:50,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:46:50,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:46:50,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:46:50,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:46:48" (1/3) ... [2020-10-13 12:46:50,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212575bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:46:50, skipping insertion in model container [2020-10-13 12:46:50,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:49" (2/3) ... [2020-10-13 12:46:50,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212575bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:46:50, skipping insertion in model container [2020-10-13 12:46:50,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:50" (3/3) ... [2020-10-13 12:46:50,525 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2020-10-13 12:46:50,536 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:46:50,544 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:46:50,558 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:46:50,585 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:46:50,585 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:46:50,585 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:46:50,585 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:46:50,585 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:46:50,586 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:46:50,586 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:46:50,586 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:46:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-10-13 12:46:50,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 12:46:50,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:46:50,619 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] [2020-10-13 12:46:50,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:46:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:46:50,626 INFO L82 PathProgramCache]: Analyzing trace with hash 104665002, now seen corresponding path program 1 times [2020-10-13 12:46:50,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:46:50,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24379270] [2020-10-13 12:46:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:46:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:51,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:51,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:52,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:53,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 12:46:54,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:46:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3819 [2020-10-13 12:46:54,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:46:54,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:46:55,107 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:46:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:46:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:55,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:55,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 12:46:55,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:55,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:55,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:46:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:55,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:55,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:55,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:55,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:55,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:46:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:55,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:55,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:55,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:55,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:55,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:55,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:55,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:55,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:46:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:55,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:55,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:55,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:46:55,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:55,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:55,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:55,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:55,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:46:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:55,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:55,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:46:55,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:55,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:55,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:46:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:55,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:55,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:55,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:55,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:55,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:55,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:46:55,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:55,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:55,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:46:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:55,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:55,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:55,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:55,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:55,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:46:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:55,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:46:55,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24379270] [2020-10-13 12:46:55,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:46:55,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:46:55,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206805429] [2020-10-13 12:46:55,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:46:55,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:46:55,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:46:55,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:46:55,275 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 3 states. [2020-10-13 12:46:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:46:56,574 INFO L93 Difference]: Finished difference Result 301 states and 388 transitions. [2020-10-13 12:46:56,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:46:56,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-13 12:46:56,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:46:56,591 INFO L225 Difference]: With dead ends: 301 [2020-10-13 12:46:56,591 INFO L226 Difference]: Without dead ends: 163 [2020-10-13 12:46:56,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:46:56,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-13 12:46:56,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 129. [2020-10-13 12:46:56,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-13 12:46:56,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-10-13 12:46:56,726 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 46 [2020-10-13 12:46:56,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:46:56,728 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-10-13 12:46:56,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:46:56,728 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-10-13 12:46:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 12:46:56,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:46:56,737 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] [2020-10-13 12:46:56,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:46:56,738 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:46:56,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:46:56,738 INFO L82 PathProgramCache]: Analyzing trace with hash 149584290, now seen corresponding path program 1 times [2020-10-13 12:46:56,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:46:56,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083933075] [2020-10-13 12:46:56,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:46:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:56,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:56,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:57,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:01,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:01,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 12:47:01,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:47:01,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 12:47:01,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:01,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:01,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:47:01,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:01,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:02,077 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:02,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:02,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:02,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:02,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:47:02,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:02,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:02,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:02,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:02,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:02,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:02,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:02,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:02,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:02,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:02,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:02,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:02,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:02,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:02,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:02,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:02,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:02,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:02,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:02,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:02,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:02,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:02,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:02,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:02,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:02,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:02,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:02,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:02,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:02,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:02,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:02,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:47:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:02,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:02,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:02,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:02,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:02,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:02,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:02,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:02,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:02,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:02,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:47:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:02,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:02,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:02,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:02,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:02,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083933075] [2020-10-13 12:47:02,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:02,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:47:02,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972749028] [2020-10-13 12:47:02,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:47:02,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:02,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:47:02,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:47:02,207 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 4 states. [2020-10-13 12:47:02,664 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:03,466 INFO L93 Difference]: Finished difference Result 225 states and 269 transitions. [2020-10-13 12:47:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:47:03,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-13 12:47:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:03,471 INFO L225 Difference]: With dead ends: 225 [2020-10-13 12:47:03,472 INFO L226 Difference]: Without dead ends: 147 [2020-10-13 12:47:03,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:47:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-13 12:47:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 120. [2020-10-13 12:47:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-13 12:47:03,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 137 transitions. [2020-10-13 12:47:03,525 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 137 transitions. Word has length 47 [2020-10-13 12:47:03,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:03,526 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 137 transitions. [2020-10-13 12:47:03,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:47:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 137 transitions. [2020-10-13 12:47:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:47:03,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:03,535 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] [2020-10-13 12:47:03,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:47:03,536 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:03,536 INFO L82 PathProgramCache]: Analyzing trace with hash 964261252, now seen corresponding path program 1 times [2020-10-13 12:47:03,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:03,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831662797] [2020-10-13 12:47:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:04,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:05,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:05,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:05,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:47:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:47:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2405 [2020-10-13 12:47:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 12:47:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:47:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:06,304 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:06,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:06,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:06,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:06,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:47:06,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:06,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:06,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:06,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:06,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:06,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:06,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:06,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:06,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:06,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:06,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:06,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:06,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:06,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:06,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:06,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:06,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:06,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:06,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:06,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:06,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:06,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:06,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:06,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:06,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:06,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:47:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:06,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:06,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:06,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:47:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:06,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:06,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:06,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:06,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:06,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:06,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831662797] [2020-10-13 12:47:06,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:06,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:47:06,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243615462] [2020-10-13 12:47:06,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:47:06,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:06,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:47:06,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:47:06,414 INFO L87 Difference]: Start difference. First operand 120 states and 137 transitions. Second operand 7 states. [2020-10-13 12:47:06,782 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:07,761 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-10-13 12:47:08,056 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:08,328 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:47:08,884 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-13 12:47:09,155 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:09,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:09,771 INFO L93 Difference]: Finished difference Result 305 states and 383 transitions. [2020-10-13 12:47:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:47:09,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-13 12:47:09,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:09,780 INFO L225 Difference]: With dead ends: 305 [2020-10-13 12:47:09,780 INFO L226 Difference]: Without dead ends: 209 [2020-10-13 12:47:09,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:47:09,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-13 12:47:09,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 177. [2020-10-13 12:47:09,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-13 12:47:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 208 transitions. [2020-10-13 12:47:09,835 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 208 transitions. Word has length 51 [2020-10-13 12:47:09,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:09,835 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 208 transitions. [2020-10-13 12:47:09,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:47:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 208 transitions. [2020-10-13 12:47:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:47:09,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:09,837 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] [2020-10-13 12:47:09,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:47:09,837 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:09,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:09,838 INFO L82 PathProgramCache]: Analyzing trace with hash 380698049, now seen corresponding path program 1 times [2020-10-13 12:47:09,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:09,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745593955] [2020-10-13 12:47:09,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:09,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:10,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:47:11,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:47:11,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1670 [2020-10-13 12:47:11,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 12:47:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:47:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:11,824 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:11,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:11,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:11,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 12:47:11,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:11,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:11,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:11,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:11,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:11,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:11,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:11,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:11,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:11,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:47:11,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:11,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:11,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:11,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:11,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:11,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:11,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:11,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:11,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:11,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:11,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:11,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:11,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:11,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:11,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:11,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:11,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:11,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 12:47:11,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:11,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:47:11,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:47:11,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:11,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:11,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:11,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:11,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:11,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:47:11,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:47:11,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:12,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:12,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:12,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:12,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:12,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:47:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:12,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:47:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:12,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:12,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745593955] [2020-10-13 12:47:12,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:12,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:47:12,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597088953] [2020-10-13 12:47:12,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:12,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:12,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:12,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:12,092 INFO L87 Difference]: Start difference. First operand 177 states and 208 transitions. Second operand 8 states. [2020-10-13 12:47:13,038 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:13,297 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:47:13,540 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:13,770 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:47:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:14,429 INFO L93 Difference]: Finished difference Result 380 states and 486 transitions. [2020-10-13 12:47:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:47:14,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-13 12:47:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:14,434 INFO L225 Difference]: With dead ends: 380 [2020-10-13 12:47:14,434 INFO L226 Difference]: Without dead ends: 227 [2020-10-13 12:47:14,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-13 12:47:14,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 185. [2020-10-13 12:47:14,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-13 12:47:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2020-10-13 12:47:14,477 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 89 [2020-10-13 12:47:14,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:14,477 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2020-10-13 12:47:14,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2020-10-13 12:47:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:47:14,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:14,479 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] [2020-10-13 12:47:14,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:47:14,479 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:14,480 INFO L82 PathProgramCache]: Analyzing trace with hash -516695229, now seen corresponding path program 1 times [2020-10-13 12:47:14,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:14,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508601563] [2020-10-13 12:47:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:14,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:14,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:15,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:15,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:47:15,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:47:15,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1427 [2020-10-13 12:47:15,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 12:47:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:15,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,148 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:47:16,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:16,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:16,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:16,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:47:16,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:47:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:16,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:16,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:47:16,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:47:16,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:16,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:16,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:16,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:47:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:16,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:16,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:16,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:47:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:16,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:47:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:16,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508601563] [2020-10-13 12:47:16,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:16,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:47:16,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340750011] [2020-10-13 12:47:16,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:47:16,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:16,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:47:16,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:47:16,332 INFO L87 Difference]: Start difference. First operand 185 states and 216 transitions. Second operand 7 states. [2020-10-13 12:47:17,111 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:17,370 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:17,604 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:18,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:18,265 INFO L93 Difference]: Finished difference Result 390 states and 495 transitions. [2020-10-13 12:47:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:47:18,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-13 12:47:18,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:18,270 INFO L225 Difference]: With dead ends: 390 [2020-10-13 12:47:18,270 INFO L226 Difference]: Without dead ends: 229 [2020-10-13 12:47:18,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:47:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-13 12:47:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 189. [2020-10-13 12:47:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-13 12:47:18,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 220 transitions. [2020-10-13 12:47:18,317 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 220 transitions. Word has length 89 [2020-10-13 12:47:18,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:18,317 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 220 transitions. [2020-10-13 12:47:18,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:47:18,317 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 220 transitions. [2020-10-13 12:47:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:47:18,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:18,319 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] [2020-10-13 12:47:18,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:47:18,319 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1454244228, now seen corresponding path program 1 times [2020-10-13 12:47:18,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:18,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250151200] [2020-10-13 12:47:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:18,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:19,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:19,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:19,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:47:19,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:47:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1626 [2020-10-13 12:47:19,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 12:47:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:47:19,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,201 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:20,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:47:20,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:20,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:20,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:20,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:20,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:20,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:20,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:20,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:20,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:20,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:47:20,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:20,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:47:20,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:20,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:20,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:47:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:20,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:20,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:20,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:20,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:20,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:47:20,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:47:20,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:20,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:20,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:20,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:20,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:20,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:20,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:47:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:20,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:20,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:20,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:20,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:20,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:47:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:20,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:20,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:20,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:20,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:20,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250151200] [2020-10-13 12:47:20,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:20,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:47:20,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554649834] [2020-10-13 12:47:20,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:20,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:20,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:20,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:20,415 INFO L87 Difference]: Start difference. First operand 189 states and 220 transitions. Second operand 8 states. [2020-10-13 12:47:20,981 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:21,508 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:21,870 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:22,207 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:22,450 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:23,652 INFO L93 Difference]: Finished difference Result 516 states and 694 transitions. [2020-10-13 12:47:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:47:23,652 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-13 12:47:23,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:23,656 INFO L225 Difference]: With dead ends: 516 [2020-10-13 12:47:23,656 INFO L226 Difference]: Without dead ends: 351 [2020-10-13 12:47:23,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:47:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-13 12:47:23,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 299. [2020-10-13 12:47:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-13 12:47:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 369 transitions. [2020-10-13 12:47:23,714 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 369 transitions. Word has length 89 [2020-10-13 12:47:23,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:23,715 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 369 transitions. [2020-10-13 12:47:23,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 369 transitions. [2020-10-13 12:47:23,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 12:47:23,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:23,718 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:23,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:47:23,718 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:23,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:23,718 INFO L82 PathProgramCache]: Analyzing trace with hash -2076885703, now seen corresponding path program 1 times [2020-10-13 12:47:23,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:23,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562051083] [2020-10-13 12:47:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:23,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:23,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:23,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:24,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:28,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:28,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 12:47:28,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 12:47:28,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 12:47:28,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:47:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 12:47:28,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:28,963 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:28,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:28,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 12:47:29,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:47:29,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:29,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:29,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:29,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:47:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:29,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:29,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:47:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:29,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:29,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:29,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:29,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:47:29,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:29,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:47:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:29,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:47:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:47:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:47:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:47:29,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 12:47:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 12:47:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:29,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:29,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:47:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:29,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:47:29,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:29,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:29,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:29,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:29,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:29,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:29,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:29,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:47:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:29,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:29,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:29,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:47:29,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 12:47:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:29,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 12:47:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:29,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:29,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 12:47:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:29,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:29,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:29,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:29,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:29,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:29,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 12:47:29,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562051083] [2020-10-13 12:47:29,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:29,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:47:29,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410872844] [2020-10-13 12:47:29,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:29,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:29,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:29,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:29,421 INFO L87 Difference]: Start difference. First operand 299 states and 369 transitions. Second operand 8 states. [2020-10-13 12:47:29,837 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:30,641 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:31,669 INFO L93 Difference]: Finished difference Result 700 states and 892 transitions. [2020-10-13 12:47:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:47:31,673 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-13 12:47:31,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:31,676 INFO L225 Difference]: With dead ends: 700 [2020-10-13 12:47:31,677 INFO L226 Difference]: Without dead ends: 425 [2020-10-13 12:47:31,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:31,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-10-13 12:47:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 386. [2020-10-13 12:47:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-13 12:47:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 466 transitions. [2020-10-13 12:47:31,757 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 466 transitions. Word has length 120 [2020-10-13 12:47:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:31,757 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 466 transitions. [2020-10-13 12:47:31,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 466 transitions. [2020-10-13 12:47:31,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 12:47:31,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:31,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:31,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:47:31,760 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:31,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:31,760 INFO L82 PathProgramCache]: Analyzing trace with hash -136303689, now seen corresponding path program 1 times [2020-10-13 12:47:31,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:31,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313627653] [2020-10-13 12:47:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:32,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:33,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 12:47:34,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:47:34,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2760 [2020-10-13 12:47:34,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:47:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 12:47:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 12:47:34,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,803 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:34,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:34,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:47:34,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:34,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:34,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:34,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:34,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:34,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:34,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:47:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:34,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:34,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:47:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:47:34,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:47:34,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:47:34,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:34,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:47:34,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:47:34,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:34,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:47:34,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:34,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:47:34,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:34,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:34,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:34,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:34,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:34,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:34,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:47:34,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:34,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:34,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:34,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:34,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:34,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:34,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:34,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:34,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:34,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:35,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:35,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:35,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:35,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:35,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:35,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:35,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:35,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:35,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:35,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:35,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:35,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:47:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:35,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:35,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:35,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:35,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:35,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:47:35,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:35,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:35,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:35,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:47:35,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:35,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:35,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:35,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:35,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:35,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:35,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:35,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:35,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:35,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 12:47:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:35,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:35,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:47:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:47:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:35,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 12:47:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:35,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:35,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:35,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:35,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:35,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:35,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:35,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 12:47:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:35,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:35,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:35,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:35,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:35,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:35,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 12:47:35,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313627653] [2020-10-13 12:47:35,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:47:35,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 12:47:35,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787217762] [2020-10-13 12:47:35,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 12:47:35,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:35,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 12:47:35,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:35,117 INFO L87 Difference]: Start difference. First operand 386 states and 466 transitions. Second operand 12 states. [2020-10-13 12:47:35,500 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:36,085 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:36,461 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:36,733 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:36,970 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:37,249 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:37,524 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:47:37,763 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:47:38,978 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:39,977 INFO L93 Difference]: Finished difference Result 987 states and 1306 transitions. [2020-10-13 12:47:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:47:39,977 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 120 [2020-10-13 12:47:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:39,990 INFO L225 Difference]: With dead ends: 987 [2020-10-13 12:47:39,990 INFO L226 Difference]: Without dead ends: 625 [2020-10-13 12:47:39,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=240, Invalid=572, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:47:39,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-10-13 12:47:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 548. [2020-10-13 12:47:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-10-13 12:47:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 686 transitions. [2020-10-13 12:47:40,107 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 686 transitions. Word has length 120 [2020-10-13 12:47:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:40,108 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 686 transitions. [2020-10-13 12:47:40,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 12:47:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 686 transitions. [2020-10-13 12:47:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 12:47:40,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:40,111 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:40,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:47:40,111 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:40,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1358900939, now seen corresponding path program 1 times [2020-10-13 12:47:40,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:40,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525548336] [2020-10-13 12:47:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:40,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:40,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:40,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:40,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:40,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 12:47:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,446 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:41,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:47:41,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:41,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:41,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:47:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:47:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:41,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:41,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:41,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:47:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 12:47:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:41,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:41,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:47:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 12:47:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:41,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:47:41,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:47:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:41,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:41,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:41,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:41,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:41,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:47:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:41,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:41,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:47:41,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 12:47:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:41,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:41,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:41,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:41,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:41,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:41,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-13 12:47:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-13 12:47:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-13 12:47:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:41,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:41,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:41,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 68 proven. 9 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-13 12:47:41,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525548336] [2020-10-13 12:47:41,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:47:41,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:47:41,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388318915] [2020-10-13 12:47:41,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:41,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:41,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:41,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:41,665 INFO L87 Difference]: Start difference. First operand 548 states and 686 transitions. Second operand 8 states. [2020-10-13 12:47:41,936 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:42,533 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:43,833 INFO L93 Difference]: Finished difference Result 1297 states and 1676 transitions. [2020-10-13 12:47:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 12:47:43,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-10-13 12:47:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:43,838 INFO L225 Difference]: With dead ends: 1297 [2020-10-13 12:47:43,839 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 12:47:43,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-13 12:47:43,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 12:47:43,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 445. [2020-10-13 12:47:43,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-10-13 12:47:43,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 539 transitions. [2020-10-13 12:47:43,914 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 539 transitions. Word has length 174 [2020-10-13 12:47:43,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:43,915 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 539 transitions. [2020-10-13 12:47:43,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:43,915 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 539 transitions. [2020-10-13 12:47:43,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 12:47:43,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:43,919 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:43,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:47:43,919 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:43,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:43,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1874994186, now seen corresponding path program 1 times [2020-10-13 12:47:43,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:43,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592647632] [2020-10-13 12:47:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:47:43,962 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:47:43,962 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:47:43,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 12:47:43,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:47:43 BoogieIcfgContainer [2020-10-13 12:47:43,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:47:44,000 INFO L168 Benchmark]: Toolchain (without parser) took 55433.35 ms. Allocated memory was 137.4 MB in the beginning and 990.4 MB in the end (delta: 853.0 MB). Free memory was 99.2 MB in the beginning and 709.1 MB in the end (delta: -609.9 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:44,001 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 12:47:44,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.79 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 99.0 MB in the beginning and 167.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:44,003 INFO L168 Benchmark]: Boogie Preprocessor took 95.90 ms. Allocated memory is still 199.8 MB. Free memory was 167.0 MB in the beginning and 163.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:44,003 INFO L168 Benchmark]: RCFGBuilder took 1183.32 ms. Allocated memory was 199.8 MB in the beginning and 228.6 MB in the end (delta: 28.8 MB). Free memory was 162.7 MB in the beginning and 194.8 MB in the end (delta: -32.1 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:44,004 INFO L168 Benchmark]: TraceAbstraction took 53480.71 ms. Allocated memory was 228.6 MB in the beginning and 990.4 MB in the end (delta: 761.8 MB). Free memory was 193.4 MB in the beginning and 709.1 MB in the end (delta: -515.7 MB). Peak memory consumption was 246.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:44,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.79 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 99.0 MB in the beginning and 167.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.90 ms. Allocated memory is still 199.8 MB. Free memory was 167.0 MB in the beginning and 163.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1183.32 ms. Allocated memory was 199.8 MB in the beginning and 228.6 MB in the end (delta: 28.8 MB). Free memory was 162.7 MB in the beginning and 194.8 MB in the end (delta: -32.1 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 53480.71 ms. Allocated memory was 228.6 MB in the beginning and 990.4 MB in the end (delta: 761.8 MB). Free memory was 193.4 MB in the beginning and 709.1 MB in the end (delta: -515.7 MB). Peak memory consumption was 246.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 310]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L713] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L391] int retValue_acc ; [L392] int tmp ; [L396] FCALL select_helpers() [L397] FCALL select_features() [L398] CALL, EXPR valid_product() [L535] int retValue_acc ; [L538] retValue_acc = 1 [L539] return (retValue_acc); [L398] RET, EXPR valid_product() [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) [L402] FCALL setup() [L403] CALL runTest() [L382] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L137] CALL processEnvironment() [L157] int tmp ; [L160] COND TRUE ! pumpRunning [L162] CALL, EXPR isHighWaterLevel() [L272] int retValue_acc ; [L273] int tmp ; [L274] int tmp___0 ; [L278] CALL, EXPR isHighWaterSensorDry() [L495] int retValue_acc ; [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); [L278] RET, EXPR isHighWaterSensorDry() [L278] tmp = isHighWaterSensorDry() [L280] COND FALSE !(\read(tmp)) [L283] tmp___0 = 1 [L285] retValue_acc = tmp___0 [L286] return (retValue_acc); [L162] RET, EXPR isHighWaterLevel() [L162] tmp = isHighWaterLevel() [L164] COND TRUE \read(tmp) [L166] CALL activatePump() [L191] int tmp ; [L195] CALL, EXPR isMethaneAlarm() [L216] int retValue_acc ; [L220] CALL, EXPR isMethaneLevelCritical() [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L220] RET, EXPR isMethaneLevelCritical() [L220] retValue_acc = isMethaneLevelCritical() [L222] return (retValue_acc); [L195] RET, EXPR isMethaneAlarm() [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) [L201] CALL activatePump__wrappee__highWaterSensor() [L185] pumpRunning = 1 [L201] RET activatePump__wrappee__highWaterSensor() [L166] RET activatePump() [L137] RET processEnvironment() [L143] CALL __utac_acc__Specification4_spec__1() [L911] int tmp ; [L912] int tmp___0 ; [L916] CALL, EXPR getWaterLevel() [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L916] RET, EXPR getWaterLevel() [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) [L143] RET __utac_acc__Specification4_spec__1() [L100] RET timeShift() [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L128] COND TRUE \read(pumpRunning) [L130] CALL lowerWaterLevel() [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 [L130] RET lowerWaterLevel() [L135] COND TRUE \read(systemActive) [L137] CALL processEnvironment() [L157] int tmp ; [L160] COND FALSE !(! pumpRunning) [L175] FCALL processEnvironment__wrappee__base() [L137] RET processEnvironment() [L143] CALL __utac_acc__Specification4_spec__1() [L911] int tmp ; [L912] int tmp___0 ; [L916] CALL, EXPR getWaterLevel() [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L916] RET, EXPR getWaterLevel() [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) [L143] RET __utac_acc__Specification4_spec__1() [L100] RET timeShift() [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L128] COND TRUE \read(pumpRunning) [L130] CALL lowerWaterLevel() [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 [L130] RET lowerWaterLevel() [L135] COND TRUE \read(systemActive) [L137] CALL processEnvironment() [L157] int tmp ; [L160] COND FALSE !(! pumpRunning) [L175] FCALL processEnvironment__wrappee__base() [L137] RET processEnvironment() [L143] CALL __utac_acc__Specification4_spec__1() [L911] int tmp ; [L912] int tmp___0 ; [L916] CALL, EXPR getWaterLevel() [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L916] RET, EXPR getWaterLevel() [L916] tmp = getWaterLevel() [L918] COND TRUE tmp == 0 [L920] CALL, EXPR isPumpRunning() [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); [L920] RET, EXPR isPumpRunning() [L920] tmp___0 = isPumpRunning() [L922] COND TRUE \read(tmp___0) [L924] CALL __automaton_fail() [L310] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 53.3s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1133 SDtfs, 1907 SDslu, 1093 SDs, 0 SdLazy, 4893 SolverSat, 1211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 275 SyntacticMatches, 7 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=548occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 397 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 29.0s InterpolantComputationTime, 988 NumberOfCodeBlocks, 988 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 278358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 161/172 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...