/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:42:29,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:42:29,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:42:29,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:42:29,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:42:29,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:42:29,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:42:29,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:42:29,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:42:29,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:42:29,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:42:29,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:42:29,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:42:29,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:42:29,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:42:29,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:42:29,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:42:29,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:42:29,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:42:29,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:42:29,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:42:29,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:42:29,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:42:29,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:42:29,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:42:29,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:42:29,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:42:29,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:42:29,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:42:29,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:42:29,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:42:29,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:42:29,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:42:29,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:42:29,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:42:29,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:42:29,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:42:29,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:42:29,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:42:29,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:42:29,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:42:29,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:42:29,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:42:29,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:42:29,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:42:29,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:42:29,323 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:42:29,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:42:29,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:42:29,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:42:29,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:42:29,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:42:29,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:42:29,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:42:29,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:42:29,325 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:42:29,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:42:29,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:42:29,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:42:29,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:42:29,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:42:29,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:42:29,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:42:29,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:42:29,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:42:29,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:42:29,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:42:29,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:42:29,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:42:29,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:42:29,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:42:29,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:42:30,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:42:30,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:42:30,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:42:30,580 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:42:30,581 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:42:30,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c [2020-09-25 01:42:30,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c962865b/89fa6e6e19524a0ca7c13138e2d107b9/FLAGdf7ddfd12 [2020-09-25 01:42:31,307 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:42:31,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c [2020-09-25 01:42:31,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c962865b/89fa6e6e19524a0ca7c13138e2d107b9/FLAGdf7ddfd12 [2020-09-25 01:42:31,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c962865b/89fa6e6e19524a0ca7c13138e2d107b9 [2020-09-25 01:42:31,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:42:31,596 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:42:31,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:42:31,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:42:31,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:42:31,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:42:31" (1/1) ... [2020-09-25 01:42:31,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:31, skipping insertion in model container [2020-09-25 01:42:31,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:42:31" (1/1) ... [2020-09-25 01:42:31,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:42:31,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:42:32,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:42:32,177 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:42:32,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:42:32,333 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:42:32,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32 WrapperNode [2020-09-25 01:42:32,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:42:32,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:42:32,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:42:32,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:42:32,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... [2020-09-25 01:42:32,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:42:32,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:42:32,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:42:32,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:42:32,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:42:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:42:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:42:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:42:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:42:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:42:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:42:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:42:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:42:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:42:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:42:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:42:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:42:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:42:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:42:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:42:32,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:42:32,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:42:32,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:42:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:42:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:42:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:42:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:42:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:42:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:42:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:42:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:42:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:42:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:42:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:42:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:42:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:42:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:42:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:42:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:42:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:42:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:42:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:42:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:42:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:42:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:42:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:42:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:42:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:42:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:42:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:42:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:42:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:42:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:42:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:42:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:42:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:42:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:42:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:42:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:42:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:42:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:42:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:42:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:42:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:42:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:42:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:42:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:42:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:42:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:42:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:42:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:42:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:42:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:42:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:42:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:42:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:42:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:42:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:42:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:42:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:42:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:42:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:42:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:42:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:42:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:42:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:42:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:42:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:42:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:42:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:42:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:42:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:42:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:42:33,778 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:42:33,778 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:42:33,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:42:33 BoogieIcfgContainer [2020-09-25 01:42:33,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:42:33,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:42:33,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:42:33,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:42:33,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:42:31" (1/3) ... [2020-09-25 01:42:33,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740209af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:42:33, skipping insertion in model container [2020-09-25 01:42:33,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:42:32" (2/3) ... [2020-09-25 01:42:33,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740209af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:42:33, skipping insertion in model container [2020-09-25 01:42:33,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:42:33" (3/3) ... [2020-09-25 01:42:33,798 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product08.cil.c [2020-09-25 01:42:33,812 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:42:33,826 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:42:33,854 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:42:33,892 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:42:33,893 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:42:33,893 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:42:33,893 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:42:33,893 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:42:33,893 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:42:33,893 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:42:33,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:42:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-09-25 01:42:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:42:33,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:33,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:42:33,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:33,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:33,951 INFO L82 PathProgramCache]: Analyzing trace with hash 79669502, now seen corresponding path program 1 times [2020-09-25 01:42:33,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:33,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010774311] [2020-09-25 01:42:33,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:34,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:34,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:36,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:37,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:38,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:39,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:39,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:42:39,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:42:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 01:42:39,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:42:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:42:39,916 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:42:39,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:42:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:39,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:42:40,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 01:42:40,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:42:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:40,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:42:40,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:42:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:42:40,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:42:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:40,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:42:40,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:42:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:40,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:42:40,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:42:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:40,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:42:40,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:40,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:42:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:40,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:40,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:40,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:40,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:42:40,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:40,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:42:40,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010774311] [2020-09-25 01:42:40,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:42:40,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:42:40,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704150129] [2020-09-25 01:42:40,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:42:40,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:42:40,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:42:40,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:42:40,357 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 3 states. [2020-09-25 01:42:42,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:42:42,038 INFO L93 Difference]: Finished difference Result 414 states and 500 transitions. [2020-09-25 01:42:42,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:42:42,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:42:42,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:42:42,072 INFO L225 Difference]: With dead ends: 414 [2020-09-25 01:42:42,072 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 01:42:42,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:42:42,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 01:42:42,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 223. [2020-09-25 01:42:42,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-09-25 01:42:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 242 transitions. [2020-09-25 01:42:42,222 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 242 transitions. Word has length 142 [2020-09-25 01:42:42,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:42:42,223 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 242 transitions. [2020-09-25 01:42:42,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:42:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 242 transitions. [2020-09-25 01:42:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:42:42,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:42,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:42:42,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:42:42,229 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:42,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:42,230 INFO L82 PathProgramCache]: Analyzing trace with hash -177134221, now seen corresponding path program 1 times [2020-09-25 01:42:42,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:42,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541668299] [2020-09-25 01:42:42,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:42,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:42,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:44,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:44,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:45,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:42:47,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:42:47,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 01:42:47,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:42:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:42:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:42:47,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:42:47,699 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:42:47,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:42:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:42:47,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 01:42:47,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:42:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:47,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:47,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:42:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:47,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:47,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:47,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:42:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:47,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:42:47,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:42:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:47,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:47,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:42:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:47,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:47,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:42:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:47,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:47,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:47,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:47,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:47,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:47,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:42:47,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541668299] [2020-09-25 01:42:47,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:42:47,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:42:47,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481334138] [2020-09-25 01:42:47,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:42:47,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:42:47,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:42:47,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:42:47,925 INFO L87 Difference]: Start difference. First operand 223 states and 242 transitions. Second operand 4 states. [2020-09-25 01:42:48,585 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:42:49,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:42:49,423 INFO L93 Difference]: Finished difference Result 321 states and 363 transitions. [2020-09-25 01:42:49,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:42:49,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:42:49,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:42:49,428 INFO L225 Difference]: With dead ends: 321 [2020-09-25 01:42:49,428 INFO L226 Difference]: Without dead ends: 248 [2020-09-25 01:42:49,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:42:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-25 01:42:49,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 213. [2020-09-25 01:42:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-25 01:42:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 229 transitions. [2020-09-25 01:42:49,470 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 229 transitions. Word has length 143 [2020-09-25 01:42:49,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:42:49,471 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 229 transitions. [2020-09-25 01:42:49,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:42:49,471 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 229 transitions. [2020-09-25 01:42:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:42:49,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:49,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:42:49,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:42:49,474 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:49,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:49,475 INFO L82 PathProgramCache]: Analyzing trace with hash 680498528, now seen corresponding path program 1 times [2020-09-25 01:42:49,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:49,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081673435] [2020-09-25 01:42:49,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:49,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:51,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:42:54,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:42:54,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 01:42:54,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:42:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:42:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:42:54,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:42:54,867 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:42:54,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:42:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:54,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:54,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:42:54,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:54,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 01:42:54,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:54,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:54,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:42:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:55,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:55,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:55,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:55,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:55,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:42:55,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:55,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:42:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:55,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:55,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:55,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:55,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:42:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:55,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:55,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:55,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:55,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:55,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:42:55,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:55,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:55,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:55,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:55,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:42:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:55,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:55,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:55,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:42:55,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:55,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:55,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:55,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:55,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:55,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:55,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:42:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:55,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:55,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:42:55,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:55,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:42:55,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:42:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:42:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:42:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:42:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:55,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:55,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:55,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:55,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:42:55,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:42:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:55,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:55,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:42:55,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:42:55,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:42:55,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:42:55,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:42:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:42:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:42:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:42:55,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:42:55,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:42:55,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081673435] [2020-09-25 01:42:55,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:42:55,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:42:55,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075086795] [2020-09-25 01:42:55,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:42:55,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:42:55,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:42:55,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:42:55,093 INFO L87 Difference]: Start difference. First operand 213 states and 229 transitions. Second operand 5 states. [2020-09-25 01:42:55,602 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:42:57,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:42:57,256 INFO L93 Difference]: Finished difference Result 485 states and 568 transitions. [2020-09-25 01:42:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:42:57,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:42:57,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:42:57,262 INFO L225 Difference]: With dead ends: 485 [2020-09-25 01:42:57,262 INFO L226 Difference]: Without dead ends: 382 [2020-09-25 01:42:57,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:42:57,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-09-25 01:42:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 306. [2020-09-25 01:42:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-09-25 01:42:57,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 339 transitions. [2020-09-25 01:42:57,330 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 339 transitions. Word has length 156 [2020-09-25 01:42:57,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:42:57,331 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 339 transitions. [2020-09-25 01:42:57,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:42:57,331 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 339 transitions. [2020-09-25 01:42:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:42:57,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:42:57,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:42:57,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:42:57,334 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:42:57,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:42:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1977027375, now seen corresponding path program 1 times [2020-09-25 01:42:57,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:42:57,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302864919] [2020-09-25 01:42:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:42:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:42:57,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:58,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:58,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:42:59,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 01:43:02,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:43:02,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 01:43:02,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:43:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 01:43:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:43:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:43:02,827 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:43:02,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:43:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:02,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:02,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:02,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:43:02,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 01:43:02,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:03,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:43:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:03,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:03,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:03,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:43:03,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:03,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:43:03,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:03,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:43:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:03,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:03,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:03,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:43:03,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:03,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:43:03,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:03,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:03,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:43:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:43:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:03,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:03,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:03,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:43:03,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:43:03,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:03,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:03,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:03,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:03,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:43:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:03,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:03,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:03,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:43:03,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:43:03,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:43:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:03,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:03,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:43:03,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:03,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:43:03,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:03,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:43:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:43:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:03,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:43:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:03,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:03,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:03,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:43:03,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:43:03,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:43:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:43:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 01:43:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:43:03,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:43:03,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:43:03,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:43:03,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:43:03,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:43:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:43:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:43:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:43:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:43:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:43:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:43:03,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302864919] [2020-09-25 01:43:03,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:43:03,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:43:03,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361718684] [2020-09-25 01:43:03,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:43:03,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:43:03,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:43:03,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:43:03,290 INFO L87 Difference]: Start difference. First operand 306 states and 339 transitions. Second operand 9 states. [2020-09-25 01:43:03,988 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:05,190 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:05,667 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 01:43:06,027 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:06,380 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:43:06,702 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:43:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:43:06,947 INFO L93 Difference]: Finished difference Result 505 states and 592 transitions. [2020-09-25 01:43:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:43:06,947 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 01:43:06,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:43:06,948 INFO L225 Difference]: With dead ends: 505 [2020-09-25 01:43:06,948 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:43:06,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:43:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:43:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:43:06,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:43:06,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:43:06,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-25 01:43:06,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:43:06,954 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:43:06,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:43:06,954 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:43:06,954 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:43:06,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:43:06,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:43:07,138 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:07,313 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:07,485 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:07,632 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:43:07,798 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:07,962 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:08,120 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:08,448 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 01:43:08,770 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 01:43:09,087 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 01:43:09,320 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:43:09,473 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:09,578 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-25 01:43:09,727 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:10,040 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:43:10,349 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:43:10,659 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:43:10,806 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:43:10,954 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:11,104 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:11,254 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:11,400 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:11,549 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:11,698 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:11,842 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:11,994 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:12,138 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:12,289 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:12,437 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:12,585 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:12,735 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:12,880 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:13,031 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:13,182 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:13,330 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:13,475 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:13,638 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:13,739 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:43:13,889 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:14,202 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 01:43:14,516 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 01:43:14,830 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 01:43:15,065 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:43:15,215 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:15,374 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:15,527 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:15,676 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:15,824 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:15,973 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:16,225 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:16,372 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:16,523 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:16,775 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:16,919 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:17,068 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:17,215 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:43:17,363 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:17,512 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:17,659 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:43:18,155 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-25 01:43:18,322 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:43:18,531 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:43:18,946 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-25 01:43:19,173 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:43:19,400 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:43:19,584 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-25 01:43:19,847 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:43:20,232 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-25 01:43:20,438 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1