/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:28:24,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:28:24,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:28:24,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:28:24,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:28:24,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:28:24,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:28:24,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:28:24,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:28:24,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:28:24,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:28:24,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:28:24,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:28:24,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:28:24,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:28:24,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:28:24,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:28:24,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:28:24,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:28:24,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:28:24,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:28:24,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:28:24,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:28:24,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:28:24,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:28:24,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:28:24,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:28:24,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:28:24,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:28:24,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:28:24,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:28:24,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:28:24,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:28:24,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:28:24,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:28:24,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:28:24,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:28:24,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:28:24,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:28:24,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:28:24,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:28:24,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:28:24,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:28:24,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:28:24,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:28:24,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:28:24,629 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:28:24,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:28:24,629 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:28:24,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:28:24,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:28:24,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:28:24,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:28:24,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:28:24,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:28:24,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:28:24,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:28:24,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:28:24,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:28:24,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:28:24,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:28:24,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:28:24,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:28:24,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:24,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:28:24,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:28:24,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:28:24,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:28:24,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:28:24,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:28:24,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:28:24,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:28:25,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:28:25,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:28:25,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:28:25,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:28:25,148 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:28:25,149 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2020-09-24 21:28:25,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d64ff4bf4/2e0da508f4ad42e195861fdb37ba0784/FLAG3c96c0ab1 [2020-09-24 21:28:25,887 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:28:25,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2020-09-24 21:28:25,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d64ff4bf4/2e0da508f4ad42e195861fdb37ba0784/FLAG3c96c0ab1 [2020-09-24 21:28:26,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d64ff4bf4/2e0da508f4ad42e195861fdb37ba0784 [2020-09-24 21:28:26,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:28:26,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:28:26,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:26,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:28:26,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:28:26,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:26,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248aaf70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26, skipping insertion in model container [2020-09-24 21:28:26,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:26,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:28:26,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:28:26,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:26,827 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:28:26,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:26,961 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:28:26,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26 WrapperNode [2020-09-24 21:28:26,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:26,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:28:26,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:28:26,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:28:26,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:26,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:27,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:27,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:27,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:27,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:27,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... [2020-09-24 21:28:27,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:28:27,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:28:27,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:28:27,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:28:27,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:28:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:28:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:28:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:28:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:28:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:28:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:28:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:28:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:28:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:28:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:28:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:28:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:28:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:28:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:28:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:28:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:28:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:28:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:28:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:28:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:28:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:28:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:28:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:28:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:28:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:28:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:28:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:28:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:28:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:28:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:28:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:28:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:28:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:28:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:28:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:28:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:28:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:28:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:28:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:28:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:28:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:28:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:28:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:28:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:28:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:28:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:28:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:28:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:28:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:28:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:28:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:28:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:28:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:28:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:28:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:28:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:28:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:28:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:28:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:28:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:28:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:28:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:28:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:28:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:28:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:28:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:28:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:28:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:28:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:28:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:28:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:28:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:28:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:28:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:28:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:28:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:28:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:28:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:28:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:28:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:28:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:28:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:28:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:28:28,361 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:28:28,361 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:28:28,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:28 BoogieIcfgContainer [2020-09-24 21:28:28,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:28:28,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:28:28,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:28:28,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:28:28,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:28:26" (1/3) ... [2020-09-24 21:28:28,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ed58d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:28, skipping insertion in model container [2020-09-24 21:28:28,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:26" (2/3) ... [2020-09-24 21:28:28,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ed58d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:28, skipping insertion in model container [2020-09-24 21:28:28,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:28" (3/3) ... [2020-09-24 21:28:28,379 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2020-09-24 21:28:28,391 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:28:28,402 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:28:28,421 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:28:28,452 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:28:28,452 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:28:28,452 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:28:28,452 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:28:28,453 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:28:28,453 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:28:28,453 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:28:28,453 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:28:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-24 21:28:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 21:28:28,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:28,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:28,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:28,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:28,512 INFO L82 PathProgramCache]: Analyzing trace with hash -505223446, now seen corresponding path program 1 times [2020-09-24 21:28:28,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:28,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790100723] [2020-09-24 21:28:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:29,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:29,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:30,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 21:28:33,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:28:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:28:33,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:28:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:28:33,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 21:28:33,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:28:34,596 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:34,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:34,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:34,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:34,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:34,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-24 21:28:34,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:28:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:35,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:35,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:35,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:35,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:35,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:35,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:35,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:35,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:35,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:35,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:35,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:28:35,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:35,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:35,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:35,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:35,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:35,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:35,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:35,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:35,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:28:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:28:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:35,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:28:35,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:28:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:35,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:35,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:35,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:35,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:35,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:28:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:35,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:35,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:35,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 21:28:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:35,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:35,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:35,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:35,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:28:35,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:35,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:28:35,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790100723] [2020-09-24 21:28:35,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:35,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:28:35,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177960628] [2020-09-24 21:28:35,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:28:35,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:35,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:28:35,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:28:35,297 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 9 states. [2020-09-24 21:28:36,025 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:36,822 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:37,146 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:38,480 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:38,778 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:39,148 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:39,790 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:40,138 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:40,468 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:41,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:28:41,202 INFO L93 Difference]: Finished difference Result 631 states and 768 transitions. [2020-09-24 21:28:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:28:41,210 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 21:28:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:28:41,239 INFO L225 Difference]: With dead ends: 631 [2020-09-24 21:28:41,239 INFO L226 Difference]: Without dead ends: 424 [2020-09-24 21:28:41,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:28:41,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-24 21:28:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 375. [2020-09-24 21:28:41,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 21:28:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 422 transitions. [2020-09-24 21:28:41,430 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 422 transitions. Word has length 160 [2020-09-24 21:28:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:28:41,435 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 422 transitions. [2020-09-24 21:28:41,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:28:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 422 transitions. [2020-09-24 21:28:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 21:28:41,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:41,446 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:41,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:28:41,446 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:41,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:41,447 INFO L82 PathProgramCache]: Analyzing trace with hash -184278339, now seen corresponding path program 1 times [2020-09-24 21:28:41,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:41,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118677255] [2020-09-24 21:28:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:41,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:41,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:44,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:46,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-09-24 21:28:46,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:28:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 21:28:46,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:28:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:28:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 21:28:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:46,855 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:46,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:46,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:47,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 21:28:47,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:28:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:47,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:47,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:47,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:47,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:47,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:47,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:28:47,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:47,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:47,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:47,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:47,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:47,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:47,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:28:47,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:28:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 21:28:47,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:28:47,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:28:47,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:28:47,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:47,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:47,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:47,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:28:47,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:28:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:28:47,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:28:47,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:28:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:47,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:47,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:28:47,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 21:28:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:47,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:47,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:28:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:47,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:47,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:47,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:47,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 21:28:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:28:47,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:28:47,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 21:28:47,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:47,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:28:47,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:28:47,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:28:47,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:28:47,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:28:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:28:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:28:47,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 21:28:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:28:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:28:47,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:28:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:28:47,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:28:47,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:28:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:47,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:28:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:47,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:47,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:28:47,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:28:47,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 21:28:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:47,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:47,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:47,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 21:28:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:47,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:47,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:47,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:47,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:47,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:47,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 21:28:47,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118677255] [2020-09-24 21:28:47,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:47,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:28:47,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380176428] [2020-09-24 21:28:47,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:28:47,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:47,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:28:47,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:28:47,791 INFO L87 Difference]: Start difference. First operand 375 states and 422 transitions. Second operand 12 states. [2020-09-24 21:28:48,287 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:49,429 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:49,954 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:28:50,294 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:28:50,646 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:51,013 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:51,321 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:51,974 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:52,376 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:28:52,788 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:28:53,197 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:28:53,533 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:28:55,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:28:55,858 INFO L93 Difference]: Finished difference Result 1063 states and 1345 transitions. [2020-09-24 21:28:55,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 21:28:55,858 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 235 [2020-09-24 21:28:55,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:28:55,868 INFO L225 Difference]: With dead ends: 1063 [2020-09-24 21:28:55,868 INFO L226 Difference]: Without dead ends: 803 [2020-09-24 21:28:55,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=236, Invalid=756, Unknown=0, NotChecked=0, Total=992 [2020-09-24 21:28:55,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2020-09-24 21:28:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 654. [2020-09-24 21:28:56,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-09-24 21:28:56,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 760 transitions. [2020-09-24 21:28:56,008 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 760 transitions. Word has length 235 [2020-09-24 21:28:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:28:56,009 INFO L479 AbstractCegarLoop]: Abstraction has 654 states and 760 transitions. [2020-09-24 21:28:56,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:28:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 760 transitions. [2020-09-24 21:28:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 21:28:56,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:56,014 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:56,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:28:56,015 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:56,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:56,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1065158485, now seen corresponding path program 1 times [2020-09-24 21:28:56,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:56,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748968346] [2020-09-24 21:28:56,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:56,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 21:28:57,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1067 [2020-09-24 21:28:57,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:28:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 21:28:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:57,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,448 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:57,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:57,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 21:28:57,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:57,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:28:57,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:57,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:57,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:57,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:57,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:57,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:57,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:57,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:28:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:57,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:57,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:28:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:28:57,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 21:28:57,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:28:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:28:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:57,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:28:57,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 21:28:57,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:28:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:28:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:57,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:28:57,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 21:28:57,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:57,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:28:57,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:28:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:28:57,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:57,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:28:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:57,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:58,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:28:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:58,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:58,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 21:28:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:58,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:58,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:58,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:58,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:58,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:58,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:58,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:58,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:58,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:58,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 21:28:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:58,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:58,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:58,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:58,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:58,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:58,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:58,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:28:58,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748968346] [2020-09-24 21:28:58,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:58,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:28:58,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399932829] [2020-09-24 21:28:58,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:28:58,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:58,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:28:58,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:28:58,093 INFO L87 Difference]: Start difference. First operand 654 states and 760 transitions. Second operand 10 states. [2020-09-24 21:28:59,790 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:00,168 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:29:00,477 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 21:29:00,849 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:01,206 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:01,520 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:02,592 INFO L93 Difference]: Finished difference Result 1329 states and 1625 transitions. [2020-09-24 21:29:02,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:29:02,594 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-24 21:29:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:02,601 INFO L225 Difference]: With dead ends: 1329 [2020-09-24 21:29:02,601 INFO L226 Difference]: Without dead ends: 790 [2020-09-24 21:29:02,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:29:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-09-24 21:29:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 670. [2020-09-24 21:29:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2020-09-24 21:29:02,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 776 transitions. [2020-09-24 21:29:02,691 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 776 transitions. Word has length 208 [2020-09-24 21:29:02,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:02,692 INFO L479 AbstractCegarLoop]: Abstraction has 670 states and 776 transitions. [2020-09-24 21:29:02,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:29:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 776 transitions. [2020-09-24 21:29:02,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 21:29:02,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:02,696 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:02,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:29:02,696 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:02,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:02,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1630448242, now seen corresponding path program 1 times [2020-09-24 21:29:02,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:02,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219683553] [2020-09-24 21:29:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:02,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 21:29:04,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1588 [2020-09-24 21:29:04,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:29:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:29:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 21:29:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,641 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:04,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:04,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 21:29:04,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:29:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:04,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:04,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:04,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:04,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:29:04,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:05,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:05,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:05,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:05,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:05,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:29:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:05,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:29:05,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:29:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:05,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:05,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:29:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:29:05,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:29:05,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:29:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:29:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:29:05,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:29:05,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:29:05,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:05,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:29:05,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:05,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:05,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:05,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:29:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:05,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:05,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 21:29:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:05,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:05,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:05,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 21:29:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:05,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:05,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:05,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:05,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:05,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:05,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:05,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:05,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:29:05,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219683553] [2020-09-24 21:29:05,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:29:05,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:29:05,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543771341] [2020-09-24 21:29:05,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:29:05,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:05,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:29:05,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:29:05,247 INFO L87 Difference]: Start difference. First operand 670 states and 776 transitions. Second operand 7 states. [2020-09-24 21:29:05,758 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:07,016 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:10,081 INFO L93 Difference]: Finished difference Result 2271 states and 2976 transitions. [2020-09-24 21:29:10,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 21:29:10,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-09-24 21:29:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:10,100 INFO L225 Difference]: With dead ends: 2271 [2020-09-24 21:29:10,101 INFO L226 Difference]: Without dead ends: 1681 [2020-09-24 21:29:10,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:29:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2020-09-24 21:29:10,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1457. [2020-09-24 21:29:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2020-09-24 21:29:10,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1761 transitions. [2020-09-24 21:29:10,310 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1761 transitions. Word has length 208 [2020-09-24 21:29:10,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:10,312 INFO L479 AbstractCegarLoop]: Abstraction has 1457 states and 1761 transitions. [2020-09-24 21:29:10,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:29:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1761 transitions. [2020-09-24 21:29:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 21:29:10,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:10,318 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:10,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:29:10,318 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:10,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:10,319 INFO L82 PathProgramCache]: Analyzing trace with hash -674630180, now seen corresponding path program 1 times [2020-09-24 21:29:10,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:10,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075009468] [2020-09-24 21:29:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:10,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:10,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking...