/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:32:20,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:32:20,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:32:20,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:32:20,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:32:20,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:32:20,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:32:20,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:32:20,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:32:20,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:32:20,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:32:20,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:32:20,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:32:20,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:32:20,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:32:20,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:32:20,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:32:20,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:32:20,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:32:20,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:32:20,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:32:20,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:32:20,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:32:20,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:32:20,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:32:20,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:32:20,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:32:20,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:32:20,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:32:20,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:32:20,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:32:20,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:32:20,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:32:20,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:32:20,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:32:20,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:32:20,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:32:20,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:32:20,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:32:20,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:32:20,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:32:20,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 12:32:20,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:32:20,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:32:20,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:32:20,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:32:20,217 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:32:20,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:32:20,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:32:20,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:32:20,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:32:20,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:32:20,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:32:20,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:32:20,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:32:20,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:32:20,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:32:20,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:32:20,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:32:20,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:32:20,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:32:20,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:32:20,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:32:20,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:32:20,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:32:20,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:32:20,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:32:20,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:32:20,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:32:20,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:32:20,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:32:20,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:32:20,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:32:20,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:32:20,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:32:20,593 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:32:20,593 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:32:20,594 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-10-13 12:32:20,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f24168bc/a9793408dc7b4a9f83c6dceea87aae83/FLAGd1ba5f1d1 [2020-10-13 12:32:21,204 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:32:21,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-10-13 12:32:21,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f24168bc/a9793408dc7b4a9f83c6dceea87aae83/FLAGd1ba5f1d1 [2020-10-13 12:32:21,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f24168bc/a9793408dc7b4a9f83c6dceea87aae83 [2020-10-13 12:32:21,538 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:32:21,539 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:32:21,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:32:21,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:32:21,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:32:21,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:21" (1/1) ... [2020-10-13 12:32:21,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e1b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:21, skipping insertion in model container [2020-10-13 12:32:21,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:21" (1/1) ... [2020-10-13 12:32:21,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:32:21,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:32:22,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:32:22,057 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:32:22,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:32:22,189 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:32:22,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22 WrapperNode [2020-10-13 12:32:22,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:32:22,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:32:22,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:32:22,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:32:22,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... [2020-10-13 12:32:22,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... [2020-10-13 12:32:22,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... [2020-10-13 12:32:22,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... [2020-10-13 12:32:22,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... [2020-10-13 12:32:22,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... [2020-10-13 12:32:22,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... [2020-10-13 12:32:22,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:32:22,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:32:22,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:32:22,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:32:22,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:32:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:32:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:32:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:32:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:32:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:32:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:32:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:32:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:32:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:32:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:32:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:32:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:32:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:32:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:32:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:32:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:32:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:32:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:32:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:32:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:32:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:32:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:32:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:32:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:32:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:32:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:32:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:32:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:32:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:32:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:32:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:32:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:32:22,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:32:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:32:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:32:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:32:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:32:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:32:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:32:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:32:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:32:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:32:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:32:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:32:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:32:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:32:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:32:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:32:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:32:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:32:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:32:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:32:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:32:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:32:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:32:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:32:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:32:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:32:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:32:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:32:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:32:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:32:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:32:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:32:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:32:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:32:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:32:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:32:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:32:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:32:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:32:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:32:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:32:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:32:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:32:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:32:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:32:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:32:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:32:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:32:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:32:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:32:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:32:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:32:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:32:23,483 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:32:23,483 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:32:23,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:23 BoogieIcfgContainer [2020-10-13 12:32:23,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:32:23,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:32:23,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:32:23,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:32:23,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:32:21" (1/3) ... [2020-10-13 12:32:23,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d29ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:23, skipping insertion in model container [2020-10-13 12:32:23,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:22" (2/3) ... [2020-10-13 12:32:23,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d29ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:23, skipping insertion in model container [2020-10-13 12:32:23,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:23" (3/3) ... [2020-10-13 12:32:23,497 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2020-10-13 12:32:23,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:32:23,515 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:32:23,529 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:32:23,553 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:32:23,554 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:32:23,554 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:32:23,554 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:32:23,554 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:32:23,554 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:32:23,555 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:32:23,555 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:32:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-10-13 12:32:23,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 12:32:23,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:23,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:23,588 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:23,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1406508770, now seen corresponding path program 1 times [2020-10-13 12:32:23,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:23,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314330740] [2020-10-13 12:32:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:24,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:24,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:28,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:28,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 12:32:28,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:32:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4756 [2020-10-13 12:32:28,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:32:28,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:28,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:32:29,020 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:29,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:29,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:29,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:29,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:29,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 12:32:29,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:29,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:29,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:29,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:29,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:29,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:29,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:29,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:29,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:29,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:29,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:29,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:29,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:29,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:29,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:29,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:29,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:29,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:29,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:29,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:29,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:29,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:29,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:29,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:29,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:29,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:29,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:29,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:29,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:29,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:29,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:29,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:29,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:29,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:29,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:32:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:29,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:29,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:29,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:29,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:29,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:29,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:29,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:29,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:32:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:29,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:29,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:29,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:29,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:29,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:29,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:29,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:29,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:29,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:29,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:29,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314330740] [2020-10-13 12:32:29,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:29,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:32:29,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72395972] [2020-10-13 12:32:29,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:32:29,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:29,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:32:29,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:32:29,197 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-10-13 12:32:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:30,413 INFO L93 Difference]: Finished difference Result 296 states and 388 transitions. [2020-10-13 12:32:30,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:32:30,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-13 12:32:30,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:30,432 INFO L225 Difference]: With dead ends: 296 [2020-10-13 12:32:30,433 INFO L226 Difference]: Without dead ends: 160 [2020-10-13 12:32:30,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:32:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-13 12:32:30,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 127. [2020-10-13 12:32:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-13 12:32:30,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2020-10-13 12:32:30,534 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 46 [2020-10-13 12:32:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:30,535 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2020-10-13 12:32:30,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:32:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2020-10-13 12:32:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 12:32:30,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:30,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:30,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:32:30,540 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:30,540 INFO L82 PathProgramCache]: Analyzing trace with hash 297997714, now seen corresponding path program 1 times [2020-10-13 12:32:30,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:30,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473568051] [2020-10-13 12:32:30,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:30,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:30,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:32,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:32,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:35,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:35,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 12:32:35,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:32:35,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 12:32:35,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:35,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:32:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:32:35,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:35,934 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:35,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:35,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:35,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:35,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:35,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:35,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:32:35,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:35,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:35,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:35,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:35,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:35,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:35,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:35,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:35,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:35,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:35,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:35,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:35,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:35,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:35,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:35,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:35,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:35,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:35,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:35,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:35,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:35,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:35,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:35,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:35,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:35,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:36,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:36,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:36,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:36,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:36,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:36,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:36,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:32:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:36,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:36,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:36,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:36,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:36,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:32:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:36,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:36,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:36,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:36,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:36,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473568051] [2020-10-13 12:32:36,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:36,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:32:36,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899233807] [2020-10-13 12:32:36,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:32:36,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:36,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:32:36,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:32:36,029 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 4 states. [2020-10-13 12:32:36,465 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:37,218 INFO L93 Difference]: Finished difference Result 225 states and 275 transitions. [2020-10-13 12:32:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:32:37,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-13 12:32:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:37,221 INFO L225 Difference]: With dead ends: 225 [2020-10-13 12:32:37,222 INFO L226 Difference]: Without dead ends: 144 [2020-10-13 12:32:37,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:32:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-13 12:32:37,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 118. [2020-10-13 12:32:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-13 12:32:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2020-10-13 12:32:37,266 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 47 [2020-10-13 12:32:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:37,266 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2020-10-13 12:32:37,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:32:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2020-10-13 12:32:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:32:37,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:37,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:37,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:32:37,269 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:37,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:37,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1416539958, now seen corresponding path program 1 times [2020-10-13 12:32:37,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:37,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517533849] [2020-10-13 12:32:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:37,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:37,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:41,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:41,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 12:32:41,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:32:41,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4407 [2020-10-13 12:32:41,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:41,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:41,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 12:32:41,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:32:41,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:41,987 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:41,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:42,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:42,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:32:42,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:42,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:42,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:42,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:42,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:42,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:42,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:42,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:42,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:42,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:42,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:42,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:42,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:42,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:42,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:42,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:42,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:42,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:42,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:42,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:32:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:42,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:42,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:42,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:32:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:42,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:32:42,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:42,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517533849] [2020-10-13 12:32:42,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:42,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:32:42,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612557034] [2020-10-13 12:32:42,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:32:42,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:42,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:32:42,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:32:42,105 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 7 states. [2020-10-13 12:32:42,501 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:32:43,526 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-13 12:32:43,822 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:32:44,086 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:32:44,637 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:32:44,931 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:45,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:45,543 INFO L93 Difference]: Finished difference Result 302 states and 382 transitions. [2020-10-13 12:32:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:32:45,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-13 12:32:45,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:45,551 INFO L225 Difference]: With dead ends: 302 [2020-10-13 12:32:45,551 INFO L226 Difference]: Without dead ends: 208 [2020-10-13 12:32:45,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 12:32:45,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-13 12:32:45,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 187. [2020-10-13 12:32:45,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-13 12:32:45,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2020-10-13 12:32:45,612 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 52 [2020-10-13 12:32:45,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:45,613 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2020-10-13 12:32:45,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:32:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2020-10-13 12:32:45,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 12:32:45,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:45,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:45,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:32:45,616 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:45,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:45,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1354545370, now seen corresponding path program 1 times [2020-10-13 12:32:45,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:45,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361189001] [2020-10-13 12:32:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:47,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:47,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 12:32:47,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:32:47,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2165 [2020-10-13 12:32:47,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 12:32:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:32:47,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,054 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:48,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:32:48,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:48,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:48,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:48,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:48,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:48,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:48,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:48,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:32:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:32:48,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:32:48,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:48,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 12:32:48,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:32:48,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:48,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:32:48,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:32:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:32:48,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:48,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:32:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:32:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:48,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:48,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:48,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:48,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:32:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:48,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 12:32:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:48,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361189001] [2020-10-13 12:32:48,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:48,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:32:48,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808000128] [2020-10-13 12:32:48,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:32:48,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:48,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:32:48,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:32:48,255 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand 8 states. [2020-10-13 12:32:49,285 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:32:49,537 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:49,785 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:50,025 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:50,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:50,685 INFO L93 Difference]: Finished difference Result 391 states and 499 transitions. [2020-10-13 12:32:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:32:50,686 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-13 12:32:50,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:50,692 INFO L225 Difference]: With dead ends: 391 [2020-10-13 12:32:50,692 INFO L226 Difference]: Without dead ends: 228 [2020-10-13 12:32:50,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:32:50,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-13 12:32:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 192. [2020-10-13 12:32:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-13 12:32:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 230 transitions. [2020-10-13 12:32:50,769 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 230 transitions. Word has length 80 [2020-10-13 12:32:50,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:50,771 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 230 transitions. [2020-10-13 12:32:50,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:32:50,771 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 230 transitions. [2020-10-13 12:32:50,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 12:32:50,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:50,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:50,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:32:50,779 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:50,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1377177624, now seen corresponding path program 1 times [2020-10-13 12:32:50,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:50,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315707372] [2020-10-13 12:32:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 12:32:52,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:32:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1790 [2020-10-13 12:32:52,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 12:32:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,831 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:52,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:52,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:32:52,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:52,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:52,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:52,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:52,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:52,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:52,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:52,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:52,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:52,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:52,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:52,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:52,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:52,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:52,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:52,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:32:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:32:52,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:32:52,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 12:32:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:52,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:52,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:32:52,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:32:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:52,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:52,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:32:52,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:32:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:52,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:52,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:52,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:53,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:32:53,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:32:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:53,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:53,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:53,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:53,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:53,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:53,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:53,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:32:53,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:32:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:53,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:53,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:53,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:53,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:53,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:53,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:53,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 12:32:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:53,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:53,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:53,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:53,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:53,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:53,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:53,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:53,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:53,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:53,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315707372] [2020-10-13 12:32:53,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:53,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:32:53,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106373210] [2020-10-13 12:32:53,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:32:53,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:53,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:32:53,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:32:53,073 INFO L87 Difference]: Start difference. First operand 192 states and 230 transitions. Second operand 7 states. [2020-10-13 12:32:53,939 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:54,217 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:32:54,460 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:32:55,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:55,114 INFO L93 Difference]: Finished difference Result 400 states and 519 transitions. [2020-10-13 12:32:55,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:32:55,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-13 12:32:55,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:55,119 INFO L225 Difference]: With dead ends: 400 [2020-10-13 12:32:55,119 INFO L226 Difference]: Without dead ends: 232 [2020-10-13 12:32:55,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:32:55,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-13 12:32:55,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 196. [2020-10-13 12:32:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-13 12:32:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 234 transitions. [2020-10-13 12:32:55,162 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 234 transitions. Word has length 80 [2020-10-13 12:32:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:55,162 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 234 transitions. [2020-10-13 12:32:55,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:32:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 234 transitions. [2020-10-13 12:32:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 12:32:55,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:55,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:55,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:32:55,164 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:55,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:55,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1892297673, now seen corresponding path program 1 times [2020-10-13 12:32:55,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:55,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922009160] [2020-10-13 12:32:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 12:32:57,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:32:57,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1848 [2020-10-13 12:32:57,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:32:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 12:32:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,251 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:57,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 12:32:57,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:32:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:57,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:57,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:57,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:57,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:57,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:57,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:32:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:32:57,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:32:57,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 12:32:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 12:32:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:57,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:32:57,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:32:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:57,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:32:57,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:32:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:57,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:32:57,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:32:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 12:32:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:57,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922009160] [2020-10-13 12:32:57,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:57,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 12:32:57,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948012090] [2020-10-13 12:32:57,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:32:57,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:57,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:32:57,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:32:57,488 INFO L87 Difference]: Start difference. First operand 196 states and 234 transitions. Second operand 6 states. [2020-10-13 12:32:57,828 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:32:58,323 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:32:59,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:59,996 INFO L93 Difference]: Finished difference Result 580 states and 751 transitions. [2020-10-13 12:32:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:32:59,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-10-13 12:32:59,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:00,002 INFO L225 Difference]: With dead ends: 580 [2020-10-13 12:33:00,002 INFO L226 Difference]: Without dead ends: 408 [2020-10-13 12:33:00,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:33:00,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-10-13 12:33:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 376. [2020-10-13 12:33:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 12:33:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 458 transitions. [2020-10-13 12:33:00,072 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 458 transitions. Word has length 80 [2020-10-13 12:33:00,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:00,072 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 458 transitions. [2020-10-13 12:33:00,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:33:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 458 transitions. [2020-10-13 12:33:00,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 12:33:00,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:00,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:33:00,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:33:00,075 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:00,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:00,075 INFO L82 PathProgramCache]: Analyzing trace with hash -2014686127, now seen corresponding path program 1 times [2020-10-13 12:33:00,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:00,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108445136] [2020-10-13 12:33:00,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:00,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:00,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:00,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 12:33:00,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:00,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-10-13 12:33:00,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:00,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 12:33:00,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:00,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 12:33:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,003 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:01,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:01,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:33:01,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:01,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:33:01,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:01,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:01,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:33:01,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:01,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:01,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:33:01,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:01,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:01,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:01,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:01,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:01,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:33:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:01,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:01,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:01,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:33:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:33:01,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:33:01,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 12:33:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:33:01,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:33:01,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:33:01,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:33:01,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:01,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:01,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:33:01,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:01,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:01,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:01,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:33:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:01,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:01,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:01,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 12:33:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:01,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:01,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:33:01,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:01,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:01,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 12:33:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:01,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:01,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:01,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:01,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:01,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:33:01,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108445136] [2020-10-13 12:33:01,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:33:01,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 12:33:01,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525490226] [2020-10-13 12:33:01,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 12:33:01,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:01,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 12:33:01,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:33:01,297 INFO L87 Difference]: Start difference. First operand 376 states and 458 transitions. Second operand 9 states. [2020-10-13 12:33:01,749 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:33:02,501 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:33:02,790 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:03,045 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:03,314 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:03,633 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:05,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:05,242 INFO L93 Difference]: Finished difference Result 1114 states and 1446 transitions. [2020-10-13 12:33:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:33:05,243 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-13 12:33:05,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:05,249 INFO L225 Difference]: With dead ends: 1114 [2020-10-13 12:33:05,250 INFO L226 Difference]: Without dead ends: 762 [2020-10-13 12:33:05,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-13 12:33:05,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-13 12:33:05,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 707. [2020-10-13 12:33:05,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-10-13 12:33:05,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 871 transitions. [2020-10-13 12:33:05,370 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 871 transitions. Word has length 84 [2020-10-13 12:33:05,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:05,371 INFO L479 AbstractCegarLoop]: Abstraction has 707 states and 871 transitions. [2020-10-13 12:33:05,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 12:33:05,371 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 871 transitions. [2020-10-13 12:33:05,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 12:33:05,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:05,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:33:05,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:33:05,373 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:05,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:05,374 INFO L82 PathProgramCache]: Analyzing trace with hash 166319437, now seen corresponding path program 1 times [2020-10-13 12:33:05,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:05,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397787310] [2020-10-13 12:33:05,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:33:05,407 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:33:05,407 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:33:05,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:33:05,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:33:05 BoogieIcfgContainer [2020-10-13 12:33:05,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:33:05,438 INFO L168 Benchmark]: Toolchain (without parser) took 43898.41 ms. Allocated memory was 147.3 MB in the beginning and 794.3 MB in the end (delta: 647.0 MB). Free memory was 101.8 MB in the beginning and 167.6 MB in the end (delta: -65.8 MB). Peak memory consumption was 581.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:05,438 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:33:05,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.70 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.6 MB in the beginning and 168.2 MB in the end (delta: -66.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:05,439 INFO L168 Benchmark]: Boogie Preprocessor took 115.76 ms. Allocated memory is still 203.4 MB. Free memory was 168.2 MB in the beginning and 163.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:05,440 INFO L168 Benchmark]: RCFGBuilder took 1182.59 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 163.6 MB in the beginning and 191.0 MB in the end (delta: -27.4 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:05,441 INFO L168 Benchmark]: TraceAbstraction took 41945.59 ms. Allocated memory was 235.4 MB in the beginning and 794.3 MB in the end (delta: 558.9 MB). Free memory was 189.6 MB in the beginning and 167.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 580.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:05,444 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 649.70 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.6 MB in the beginning and 168.2 MB in the end (delta: -66.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.76 ms. Allocated memory is still 203.4 MB. Free memory was 168.2 MB in the beginning and 163.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1182.59 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 163.6 MB in the beginning and 191.0 MB in the end (delta: -27.4 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41945.59 ms. Allocated memory was 235.4 MB in the beginning and 794.3 MB in the end (delta: 558.9 MB). Free memory was 189.6 MB in the beginning and 167.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 580.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 837]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) [L788] CALL waterRise() [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 [L788] RET waterRise() [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) [L798] CALL changeMethaneLevel() [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 [L798] RET changeMethaneLevel() [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___2)) [L812] tmp___1 = __VERIFIER_nondet_int() [L814] COND TRUE \read(tmp___1) [L821] CALL timeShift() [L587] COND FALSE !(\read(pumpRunning)) [L594] COND TRUE \read(systemActive) [L596] CALL processEnvironment() [L642] int tmp ; [L645] COND FALSE !(\read(pumpRunning)) [L660] CALL processEnvironment__wrappee__highWaterSensor() [L616] int tmp ; [L619] COND TRUE ! pumpRunning [L621] CALL, EXPR isHighWaterLevel() [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; [L745] CALL, EXPR isHighWaterSensorDry() [L923] int retValue_acc ; [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); [L745] RET, EXPR isHighWaterSensorDry() [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); [L621] RET, EXPR isHighWaterLevel() [L621] tmp = isHighWaterLevel() [L623] COND TRUE \read(tmp) [L625] CALL activatePump() [L670] pumpRunning = 1 [L625] RET activatePump() [L660] RET processEnvironment__wrappee__highWaterSensor() [L596] RET processEnvironment() [L602] CALL __utac_acc__Specification1_spec__1() [L183] int tmp ; [L184] int tmp___0 ; [L188] CALL, EXPR isMethaneLevelCritical() [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L188] RET, EXPR isMethaneLevelCritical() [L188] tmp = isMethaneLevelCritical() [L190] COND TRUE \read(tmp) [L192] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L192] RET, EXPR isPumpRunning() [L192] tmp___0 = isPumpRunning() [L194] COND TRUE \read(tmp___0) [L196] CALL __automaton_fail() [L837] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 229 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 1147 SDslu, 734 SDs, 0 SdLazy, 3231 SolverSat, 701 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 156 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=707occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 239 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 23.8s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 135530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...