/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=BIGGEST --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_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 17:59:52,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 17:59:52,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 17:59:52,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 17:59:52,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 17:59:52,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 17:59:52,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 17:59:52,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 17:59:52,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 17:59:52,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 17:59:52,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 17:59:52,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 17:59:52,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 17:59:52,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 17:59:52,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 17:59:52,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 17:59:52,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 17:59:52,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 17:59:52,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 17:59:52,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 17:59:52,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 17:59:52,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 17:59:52,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 17:59:52,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 17:59:52,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 17:59:52,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 17:59:52,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 17:59:52,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 17:59:52,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 17:59:52,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 17:59:52,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 17:59:52,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 17:59:52,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 17:59:52,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 17:59:52,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 17:59:52,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 17:59:52,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 17:59:52,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 17:59:52,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 17:59:52,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 17:59:52,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 17:59:52,313 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 [2020-10-12 17:59:52,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 17:59:52,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 17:59:52,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 17:59:52,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 17:59:52,337 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 17:59:52,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 17:59:52,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 17:59:52,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 17:59:52,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 17:59:52,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 17:59:52,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 17:59:52,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 17:59:52,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 17:59:52,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 17:59:52,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 17:59:52,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 17:59:52,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 17:59:52,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 17:59:52,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 17:59:52,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 17:59:52,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 17:59:52,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:59:52,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 17:59:52,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 17:59:52,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 17:59:52,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 17:59:52,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 17:59:52,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 17:59:52,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 17:59:52,342 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 17:59:52,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 17:59:52,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 17:59:52,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 17:59:52,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 17:59:52,679 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 17:59:52,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-10-12 17:59:52,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/792071be5/1bf62bbf02b04d1ea33bec3fd9350b5c/FLAG3c5397580 [2020-10-12 17:59:53,272 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 17:59:53,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-10-12 17:59:53,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/792071be5/1bf62bbf02b04d1ea33bec3fd9350b5c/FLAG3c5397580 [2020-10-12 17:59:53,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/792071be5/1bf62bbf02b04d1ea33bec3fd9350b5c [2020-10-12 17:59:53,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 17:59:53,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 17:59:53,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 17:59:53,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 17:59:53,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 17:59:53,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:59:53" (1/1) ... [2020-10-12 17:59:53,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:53, skipping insertion in model container [2020-10-12 17:59:53,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:59:53" (1/1) ... [2020-10-12 17:59:53,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 17:59:53,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 17:59:53,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:59:54,001 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 17:59:54,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:59:54,236 INFO L208 MainTranslator]: Completed translation [2020-10-12 17:59:54,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54 WrapperNode [2020-10-12 17:59:54,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 17:59:54,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 17:59:54,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 17:59:54,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 17:59:54,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (1/1) ... [2020-10-12 17:59:54,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (1/1) ... [2020-10-12 17:59:54,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (1/1) ... [2020-10-12 17:59:54,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (1/1) ... [2020-10-12 17:59:54,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (1/1) ... [2020-10-12 17:59:54,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (1/1) ... [2020-10-12 17:59:54,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (1/1) ... [2020-10-12 17:59:54,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 17:59:54,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 17:59:54,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 17:59:54,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 17:59:54,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (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 [2020-10-12 17:59:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 17:59:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 17:59:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 17:59:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 17:59:54,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 17:59:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 17:59:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 17:59:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 17:59:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 17:59:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 17:59:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 17:59:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 17:59:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 17:59:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 17:59:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 17:59:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 17:59:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-10-12 17:59:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-10-12 17:59:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-10-12 17:59:54,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-10-12 17:59:54,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-10-12 17:59:54,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-10-12 17:59:54,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 17:59:54,419 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-10-12 17:59:54,420 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-10-12 17:59:54,420 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 17:59:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 17:59:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 17:59:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 17:59:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 17:59:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-12 17:59:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-12 17:59:54,421 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-12 17:59:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-12 17:59:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 17:59:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 17:59:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 17:59:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 17:59:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-12 17:59:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 17:59:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 17:59:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 17:59:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 17:59:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 17:59:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 17:59:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 17:59:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-12 17:59:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-12 17:59:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 17:59:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 17:59:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 17:59:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 17:59:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 17:59:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 17:59:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 17:59:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 17:59:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 17:59:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 17:59:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 17:59:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 17:59:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 17:59:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 17:59:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 17:59:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 17:59:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 17:59:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 17:59:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 17:59:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 17:59:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 17:59:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 17:59:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 17:59:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 17:59:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 17:59:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 17:59:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 17:59:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 17:59:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 17:59:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 17:59:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 17:59:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 17:59:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 17:59:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-12 17:59:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-12 17:59:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 17:59:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 17:59:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 17:59:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-12 17:59:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-12 17:59:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 17:59:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 17:59:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 17:59:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-12 17:59:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 17:59:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-10-12 17:59:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-12 17:59:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-10-12 17:59:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-10-12 17:59:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-12 17:59:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-10-12 17:59:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-10-12 17:59:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 17:59:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-10-12 17:59:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-10-12 17:59:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-10-12 17:59:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 17:59:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 17:59:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 17:59:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 17:59:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 17:59:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 17:59:55,733 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 17:59:55,733 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 17:59:55,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:59:55 BoogieIcfgContainer [2020-10-12 17:59:55,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 17:59:55,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 17:59:55,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 17:59:55,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 17:59:55,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:59:53" (1/3) ... [2020-10-12 17:59:55,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6554fead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:59:55, skipping insertion in model container [2020-10-12 17:59:55,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:54" (2/3) ... [2020-10-12 17:59:55,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6554fead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:59:55, skipping insertion in model container [2020-10-12 17:59:55,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:59:55" (3/3) ... [2020-10-12 17:59:55,760 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-10-12 17:59:55,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 17:59:55,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 17:59:55,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 17:59:55,812 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 17:59:55,812 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 17:59:55,813 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 17:59:55,813 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 17:59:55,813 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 17:59:55,813 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 17:59:55,814 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 17:59:55,814 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 17:59:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2020-10-12 17:59:55,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 17:59:55,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:59:55,854 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:59:55,854 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:59:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:59:55,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1384301403, now seen corresponding path program 1 times [2020-10-12 17:59:55,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:59:55,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600182111] [2020-10-12 17:59:55,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:59:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:59:56,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:59:56,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:59:57,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:59:59,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:59:59,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 17:59:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 17:59:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3113 [2020-10-12 17:59:59,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:59:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 17:59:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:59:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 17:59:59,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 17:59:59,902 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-12 17:59:59,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:59:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:59:59,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-12 18:00:00,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:00:00,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:00:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:00:00,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:00,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:00,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:00:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:00:00,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:00:00,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:00,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:00:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:00:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:00:00,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:00:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:00:00,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:00,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:00,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 18:00:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:00,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:00:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:00,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:00,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 18:00:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:00:00,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:00,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:00,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 18:00:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:00:00,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:00:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:00:00,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:00,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 18:00:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:00:00,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:00:00,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:00:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:00:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:00:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:00:00,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:00:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:00:00,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:00:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:00,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:00:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:00,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:00,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:00,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:00,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:00,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:00:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-12 18:00:00,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600182111] [2020-10-12 18:00:00,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:00:00,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:00:00,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734997966] [2020-10-12 18:00:00,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:00:00,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:00:00,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:00:00,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:00:00,446 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 9 states. [2020-10-12 18:00:01,307 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-12 18:00:03,535 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-12 18:00:04,080 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-12 18:00:04,444 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-12 18:00:04,831 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-12 18:00:05,378 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-12 18:00:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:00:07,872 INFO L93 Difference]: Finished difference Result 642 states and 875 transitions. [2020-10-12 18:00:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:00:07,875 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-12 18:00:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:00:07,899 INFO L225 Difference]: With dead ends: 642 [2020-10-12 18:00:07,900 INFO L226 Difference]: Without dead ends: 435 [2020-10-12 18:00:07,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:00:07,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-12 18:00:08,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 381. [2020-10-12 18:00:08,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-12 18:00:08,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 481 transitions. [2020-10-12 18:00:08,078 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 481 transitions. Word has length 84 [2020-10-12 18:00:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:00:08,079 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 481 transitions. [2020-10-12 18:00:08,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:00:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 481 transitions. [2020-10-12 18:00:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 18:00:08,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:00:08,086 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:00:08,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:00:08,087 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:00:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:00:08,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1368227561, now seen corresponding path program 1 times [2020-10-12 18:00:08,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:00:08,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840171073] [2020-10-12 18:00:08,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:00:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:08,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:08,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:08,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:10,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:10,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:00:13,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:00:13,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:00:13,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:00:13,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:00:13,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 18:00:13,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,458 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-12 18:00:13,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:00:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 18:00:13,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:00:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:00:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:00:13,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:00:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:00:13,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:00:13,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:00:13,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:00:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:13,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:13,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:00:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:13,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:13,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 18:00:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:13,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:13,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:00:13,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:00:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:13,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:13,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 18:00:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:13,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:13,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:13,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 18:00:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:00:13,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:00:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:00:13,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 18:00:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:00:13,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:13,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:13,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:00:13,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:00:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:00:13,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:00:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:00:13,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:00:13,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:00:13,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:00:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:00:13,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:13,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:00:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:00:13,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:00:13,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:13,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:13,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:00:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:13,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:13,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:13,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:13,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:13,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:13,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:00:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-12 18:00:13,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840171073] [2020-10-12 18:00:13,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:00:13,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:00:13,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663650243] [2020-10-12 18:00:13,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:00:13,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:00:13,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:00:13,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:00:13,823 INFO L87 Difference]: Start difference. First operand 381 states and 481 transitions. Second operand 12 states. [2020-10-12 18:00:14,471 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-12 18:00:15,596 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-12 18:00:16,700 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 211 [2020-10-12 18:00:17,808 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-12 18:00:18,107 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-12 18:00:18,606 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-12 18:00:18,975 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-12 18:00:19,453 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-12 18:00:20,460 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 217 [2020-10-12 18:00:20,788 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-12 18:00:21,800 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 215 [2020-10-12 18:00:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:00:27,035 INFO L93 Difference]: Finished difference Result 1184 states and 1641 transitions. [2020-10-12 18:00:27,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:00:27,039 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-12 18:00:27,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:00:27,048 INFO L225 Difference]: With dead ends: 1184 [2020-10-12 18:00:27,048 INFO L226 Difference]: Without dead ends: 958 [2020-10-12 18:00:27,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 18:00:27,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-10-12 18:00:27,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 794. [2020-10-12 18:00:27,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2020-10-12 18:00:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1009 transitions. [2020-10-12 18:00:27,276 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1009 transitions. Word has length 89 [2020-10-12 18:00:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:00:27,277 INFO L479 AbstractCegarLoop]: Abstraction has 794 states and 1009 transitions. [2020-10-12 18:00:27,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:00:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1009 transitions. [2020-10-12 18:00:27,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 18:00:27,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:00:27,283 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:00:27,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:00:27,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:00:27,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:00:27,284 INFO L82 PathProgramCache]: Analyzing trace with hash 845039015, now seen corresponding path program 1 times [2020-10-12 18:00:27,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:00:27,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367794706] [2020-10-12 18:00:27,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:00:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:27,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:27,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:27,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-12 18:00:27,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-10-12 18:00:27,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:00:27,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:00:27,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 18:00:27,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,193 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-12 18:00:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:00:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 18:00:28,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:00:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:00:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:00:28,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:28,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:28,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:00:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:00:28,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:00:28,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:28,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:00:28,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:00:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:00:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 18:00:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:00:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 18:00:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 18:00:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 18:00:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:28,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-12 18:00:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:00:28,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:00:28,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:00:28,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:00:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:00:28,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:00:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:00:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:00:28,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:00:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:00:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:00:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:00:28,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:00:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:00:28,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:00:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:00:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:00:28,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:00:28,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:00:28,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:00:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:00:28,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:00:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:00:28,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:00:28,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:00:28,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:00:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-12 18:00:28,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367794706] [2020-10-12 18:00:28,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:00:28,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:00:28,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462280765] [2020-10-12 18:00:28,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:00:28,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:00:28,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:00:28,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:00:28,500 INFO L87 Difference]: Start difference. First operand 794 states and 1009 transitions. Second operand 7 states. [2020-10-12 18:00:28,933 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-12 18:00:32,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:00:32,784 INFO L93 Difference]: Finished difference Result 2548 states and 3345 transitions. [2020-10-12 18:00:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:00:32,785 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-12 18:00:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:00:32,798 INFO L225 Difference]: With dead ends: 2548 [2020-10-12 18:00:32,798 INFO L226 Difference]: Without dead ends: 1795 [2020-10-12 18:00:32,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:00:32,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2020-10-12 18:00:33,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1516. [2020-10-12 18:00:33,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2020-10-12 18:00:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 1939 transitions. [2020-10-12 18:00:33,142 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 1939 transitions. Word has length 94 [2020-10-12 18:00:33,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:00:33,145 INFO L479 AbstractCegarLoop]: Abstraction has 1516 states and 1939 transitions. [2020-10-12 18:00:33,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:00:33,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 1939 transitions. [2020-10-12 18:00:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-12 18:00:33,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:00:33,153 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:00:33,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:00:33,153 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:00:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:00:33,153 INFO L82 PathProgramCache]: Analyzing trace with hash -950611836, now seen corresponding path program 1 times [2020-10-12 18:00:33,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:00:33,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844981321] [2020-10-12 18:00:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:00:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 18:00:33,235 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 18:00:33,235 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 18:00:33,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:00:33,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:00:33 BoogieIcfgContainer [2020-10-12 18:00:33,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 18:00:33,284 INFO L168 Benchmark]: Toolchain (without parser) took 39696.37 ms. Allocated memory was 140.0 MB in the beginning and 808.5 MB in the end (delta: 668.5 MB). Free memory was 102.4 MB in the beginning and 746.9 MB in the end (delta: -644.5 MB). Peak memory consumption was 697.7 MB. Max. memory is 7.1 GB. [2020-10-12 18:00:33,286 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 18:00:33,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.59 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 167.2 MB in the end (delta: -65.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-10-12 18:00:33,294 INFO L168 Benchmark]: Boogie Preprocessor took 90.38 ms. Allocated memory is still 202.9 MB. Free memory was 167.2 MB in the beginning and 163.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-12 18:00:33,295 INFO L168 Benchmark]: RCFGBuilder took 1419.20 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 163.1 MB in the beginning and 181.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2020-10-12 18:00:33,296 INFO L168 Benchmark]: TraceAbstraction took 37529.89 ms. Allocated memory was 237.0 MB in the beginning and 808.5 MB in the end (delta: 571.5 MB). Free memory was 181.4 MB in the beginning and 746.9 MB in the end (delta: -565.5 MB). Peak memory consumption was 679.7 MB. Max. memory is 7.1 GB. [2020-10-12 18:00:33,308 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.59 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 167.2 MB in the end (delta: -65.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.38 ms. Allocated memory is still 202.9 MB. Free memory was 167.2 MB in the beginning and 163.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1419.20 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 163.1 MB in the beginning and 181.4 MB in the end (delta: -18.3 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37529.89 ms. Allocated memory was 237.0 MB in the beginning and 808.5 MB in the end (delta: 571.5 MB). Free memory was 181.4 MB in the beginning and 746.9 MB in the end (delta: -565.5 MB). Peak memory consumption was 679.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 301 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.4s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 725 SDtfs, 2574 SDslu, 433 SDs, 0 SdLazy, 5473 SolverSat, 2398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1516occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 3 MinimizatonAttempts, 497 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 102540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 135/135 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...