/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:38:46,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:38:46,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:38:46,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:38:46,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:38:46,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:38:46,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:38:46,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:38:46,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:38:46,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:38:46,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:38:46,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:38:46,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:38:46,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:38:46,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:38:46,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:38:46,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:38:46,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:38:46,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:38:46,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:38:46,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:38:46,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:38:46,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:38:46,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:38:46,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:38:46,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:38:46,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:38:46,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:38:46,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:38:46,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:38:46,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:38:46,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:38:46,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:38:46,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:38:46,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:38:46,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:38:46,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:38:46,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:38:46,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:38:46,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:38:46,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:38:46,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 11:38:46,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:38:46,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:38:46,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:38:46,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:38:46,550 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:38:46,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:38:46,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:38:46,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:38:46,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:38:46,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:38:46,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:38:46,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:38:46,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:38:46,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:38:46,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:38:46,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:38:46,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:38:46,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:38:46,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:38:46,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:38:46,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:38:46,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:38:46,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:38:46,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:38:46,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:38:46,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:38:46,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:38:46,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:38:46,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:38:46,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:38:46,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:38:47,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:38:47,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:38:47,024 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:38:47,025 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:38:47,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-10-29 11:38:47,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7abda8a11/5363aefecc1b4828a64c4182e395a5bc/FLAGaa58658ad [2020-10-29 11:38:47,944 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:38:47,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-10-29 11:38:47,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7abda8a11/5363aefecc1b4828a64c4182e395a5bc/FLAGaa58658ad [2020-10-29 11:38:48,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7abda8a11/5363aefecc1b4828a64c4182e395a5bc [2020-10-29 11:38:48,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:38:48,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:38:48,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:38:48,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:38:48,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:38:48,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:48,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6006a8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48, skipping insertion in model container [2020-10-29 11:38:48,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:48,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:38:48,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:38:48,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:38:48,703 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:38:48,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:38:48,935 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:38:48,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48 WrapperNode [2020-10-29 11:38:48,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:38:48,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:38:48,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:38:48,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:38:48,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:48,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:49,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:49,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:49,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:49,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:49,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... [2020-10-29 11:38:49,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:38:49,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:38:49,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:38:49,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:38:49,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:38:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:38:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:38:49,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:38:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:38:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:38:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:38:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:38:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:38:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:38:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:38:49,204 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:38:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:38:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:38:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:38:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:38:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:38:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:38:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:38:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:38:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:38:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:38:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:38:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:38:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:38:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-29 11:38:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:38:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:38:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:38:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:38:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:38:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:38:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:38:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:38:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:38:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:38:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:38:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:38:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:38:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:38:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:38:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:38:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:38:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:38:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:38:49,215 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:38:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:38:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:38:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:38:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:38:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:38:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:38:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:38:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:38:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:38:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:38:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:38:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:38:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:38:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-29 11:38:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:38:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:38:49,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:38:49,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:38:50,696 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:38:50,697 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:38:50,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:38:50 BoogieIcfgContainer [2020-10-29 11:38:50,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:38:50,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:38:50,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:38:50,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:38:50,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:38:48" (1/3) ... [2020-10-29 11:38:50,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49521ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:38:50, skipping insertion in model container [2020-10-29 11:38:50,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:48" (2/3) ... [2020-10-29 11:38:50,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49521ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:38:50, skipping insertion in model container [2020-10-29 11:38:50,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:38:50" (3/3) ... [2020-10-29 11:38:50,716 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-10-29 11:38:50,729 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:38:50,735 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:38:50,756 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:38:50,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:38:50,803 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:38:50,803 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:38:50,803 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:38:50,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:38:50,804 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:38:50,805 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:38:50,805 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:38:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-10-29 11:38:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:38:50,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:50,861 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] [2020-10-29 11:38:50,863 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:50,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:50,873 INFO L82 PathProgramCache]: Analyzing trace with hash -25429987, now seen corresponding path program 1 times [2020-10-29 11:38:50,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:50,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549403207] [2020-10-29 11:38:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:51,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:51,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:52,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:54,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:54,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:38:54,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:38:54,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3082 [2020-10-29 11:38:54,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:54,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:54,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:38:54,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:54,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:38:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-29 11:38:55,070 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:55,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:55,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-29 11:38:55,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:55,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:55,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:55,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:55,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:38:55,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 11:38:55,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:55,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:55,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:55,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:55,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:55,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:38:55,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:38:55,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:55,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:55,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:55,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:55,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:38:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:55,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 11:38:55,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:55,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:55,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:38:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:55,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:55,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:55,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:55,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:38:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:55,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:55,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:55,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:55,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:55,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:55,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:55,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:38:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:55,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549403207] [2020-10-29 11:38:55,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:55,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:38:55,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456802327] [2020-10-29 11:38:55,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:38:55,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:55,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:38:55,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:38:55,532 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 4 states. [2020-10-29 11:38:56,374 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:39:00,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:39:00,701 INFO L93 Difference]: Finished difference Result 465 states and 606 transitions. [2020-10-29 11:39:00,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:39:00,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:39:00,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:39:00,723 INFO L225 Difference]: With dead ends: 465 [2020-10-29 11:39:00,723 INFO L226 Difference]: Without dead ends: 303 [2020-10-29 11:39:00,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:39:00,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-29 11:39:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 233. [2020-10-29 11:39:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-29 11:39:00,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 276 transitions. [2020-10-29 11:39:00,902 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 276 transitions. Word has length 53 [2020-10-29 11:39:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:39:00,903 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 276 transitions. [2020-10-29 11:39:00,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:39:00,903 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 276 transitions. [2020-10-29 11:39:00,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 11:39:00,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:39:00,908 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] [2020-10-29 11:39:00,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:39:00,909 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:39:00,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:39:00,909 INFO L82 PathProgramCache]: Analyzing trace with hash 258274009, now seen corresponding path program 1 times [2020-10-29 11:39:00,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:39:00,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312950536] [2020-10-29 11:39:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:39:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:00,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:03,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:05,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:05,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 11:39:05,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:39:05,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 11:39:05,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:05,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 11:39:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 11:39:05,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,623 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:39:06,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:39:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:06,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 11:39:06,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:39:06,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:39:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:39:06,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:39:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:06,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:39:06,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:06,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:39:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:06,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:39:06,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:06,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:39:06,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:39:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:06,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:39:06,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:06,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:06,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 11:39:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:39:06,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 11:39:06,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:39:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:39:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:06,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:06,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:39:06,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:39:06,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 11:39:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:06,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:39:06,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:06,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:39:06,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 11:39:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:06,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:39:06,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:39:06,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:06,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:39:06,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 11:39:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:06,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:06,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:06,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:06,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:06,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:06,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:06,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:06,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:39:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:39:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:06,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:39:06,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312950536] [2020-10-29 11:39:06,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:39:06,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:39:06,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862122448] [2020-10-29 11:39:06,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:39:06,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:39:06,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:39:06,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:39:06,956 INFO L87 Difference]: Start difference. First operand 233 states and 276 transitions. Second operand 8 states. [2020-10-29 11:39:07,765 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:39:10,653 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:39:11,586 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:39:12,361 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:39:13,220 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:39:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:39:15,963 INFO L93 Difference]: Finished difference Result 790 states and 1071 transitions. [2020-10-29 11:39:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 11:39:15,969 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-29 11:39:15,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:39:15,989 INFO L225 Difference]: With dead ends: 790 [2020-10-29 11:39:15,989 INFO L226 Difference]: Without dead ends: 581 [2020-10-29 11:39:15,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-29 11:39:15,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-29 11:39:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 444. [2020-10-29 11:39:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-29 11:39:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 542 transitions. [2020-10-29 11:39:16,187 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 542 transitions. Word has length 67 [2020-10-29 11:39:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:39:16,188 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 542 transitions. [2020-10-29 11:39:16,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:39:16,188 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 542 transitions. [2020-10-29 11:39:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 11:39:16,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:39:16,193 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] [2020-10-29 11:39:16,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:39:16,194 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:39:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:39:16,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1030250224, now seen corresponding path program 1 times [2020-10-29 11:39:16,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:39:16,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333735254] [2020-10-29 11:39:16,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:39:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:16,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:16,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:16,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:17,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:20,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:20,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:21,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:21,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 11:39:21,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 11:39:21,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 11:39:21,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:21,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 11:39:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 11:39:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:21,957 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:39:21,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:39:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:21,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:22,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 11:39:22,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:22,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:39:22,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:39:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:22,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:22,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:22,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:39:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:22,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:22,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:22,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:22,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:39:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:22,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:39:22,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:22,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:39:22,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:39:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:22,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:22,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:22,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:39:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:22,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:39:22,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:39:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:39:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:39:22,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 11:39:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:39:22,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:39:22,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:22,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:39:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:39:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:22,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:39:22,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:39:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:39:22,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 11:39:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:22,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:39:22,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:39:22,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 11:39:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:39:22,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:39:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:39:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 11:39:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:22,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:22,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:22,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:22,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:22,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:22,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:22,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:39:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:39:22,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:22,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:39:22,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333735254] [2020-10-29 11:39:22,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:39:22,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:39:22,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641051856] [2020-10-29 11:39:22,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:39:22,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:39:22,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:39:22,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:39:22,267 INFO L87 Difference]: Start difference. First operand 444 states and 542 transitions. Second operand 11 states. [2020-10-29 11:39:23,096 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:39:24,840 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:39:26,881 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 211 DAG size of output: 204 [2020-10-29 11:39:28,587 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:39:30,868 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-29 11:39:31,972 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:39:32,796 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:39:34,571 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-29 11:39:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:39:40,691 INFO L93 Difference]: Finished difference Result 1590 states and 2287 transitions. [2020-10-29 11:39:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 11:39:40,697 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 66 [2020-10-29 11:39:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:39:40,708 INFO L225 Difference]: With dead ends: 1590 [2020-10-29 11:39:40,708 INFO L226 Difference]: Without dead ends: 1266 [2020-10-29 11:39:40,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2020-10-29 11:39:40,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2020-10-29 11:39:40,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 954. [2020-10-29 11:39:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2020-10-29 11:39:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1142 transitions. [2020-10-29 11:39:40,989 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1142 transitions. Word has length 66 [2020-10-29 11:39:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:39:40,989 INFO L481 AbstractCegarLoop]: Abstraction has 954 states and 1142 transitions. [2020-10-29 11:39:40,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:39:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1142 transitions. [2020-10-29 11:39:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:39:40,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:39:40,993 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] [2020-10-29 11:39:40,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:39:40,994 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:39:40,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:39:40,995 INFO L82 PathProgramCache]: Analyzing trace with hash 2071495412, now seen corresponding path program 1 times [2020-10-29 11:39:40,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:39:40,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686353867] [2020-10-29 11:39:40,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:39:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:39:41,040 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:39:41,040 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:39:41,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:39:41,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:39:41 BoogieIcfgContainer [2020-10-29 11:39:41,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:39:41,071 INFO L168 Benchmark]: Toolchain (without parser) took 52870.56 ms. Allocated memory was 159.4 MB in the beginning and 407.9 MB in the end (delta: 248.5 MB). Free memory was 142.4 MB in the beginning and 257.8 MB in the end (delta: -115.4 MB). Peak memory consumption was 132.3 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:41,072 INFO L168 Benchmark]: CDTParser took 1.60 ms. Allocated memory is still 159.4 MB. Free memory was 132.9 MB in the beginning and 132.8 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:39:41,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.24 ms. Allocated memory is still 159.4 MB. Free memory was 141.8 MB in the beginning and 135.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:41,074 INFO L168 Benchmark]: Boogie Preprocessor took 167.52 ms. Allocated memory is still 159.4 MB. Free memory was 135.1 MB in the beginning and 131.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:41,075 INFO L168 Benchmark]: RCFGBuilder took 1592.71 ms. Allocated memory is still 159.4 MB. Free memory was 131.0 MB in the beginning and 129.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 82.5 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:41,076 INFO L168 Benchmark]: TraceAbstraction took 50362.75 ms. Allocated memory was 159.4 MB in the beginning and 407.9 MB in the end (delta: 248.5 MB). Free memory was 129.3 MB in the beginning and 257.8 MB in the end (delta: -128.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 8.0 GB. [2020-10-29 11:39:41,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.60 ms. Allocated memory is still 159.4 MB. Free memory was 132.9 MB in the beginning and 132.8 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 729.24 ms. Allocated memory is still 159.4 MB. Free memory was 141.8 MB in the beginning and 135.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 167.52 ms. Allocated memory is still 159.4 MB. Free memory was 135.1 MB in the beginning and 131.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1592.71 ms. Allocated memory is still 159.4 MB. Free memory was 131.0 MB in the beginning and 129.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 82.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 50362.75 ms. Allocated memory was 159.4 MB in the beginning and 407.9 MB in the end (delta: 248.5 MB). Free memory was 129.3 MB in the beginning and 257.8 MB in the end (delta: -128.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L187] int waterLevel = 1; [L188] int methaneLevelCritical = 0; [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L889] int splverifierCounter ; [L890] int tmp ; [L891] int tmp___0 ; [L892] int tmp___1 ; [L893] int tmp___2 ; [L896] splverifierCounter = 0 [L898] COND TRUE 1 [L900] COND TRUE splverifierCounter < 4 [L906] tmp = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp) [L910] CALL waterRise() [L205] COND TRUE waterLevel < 2 [L206] waterLevel = waterLevel + 1 [L910] RET waterRise() [L916] tmp___0 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___0)) [L926] tmp___2 = __VERIFIER_nondet_int() [L928] COND FALSE !(\read(tmp___2)) [L934] tmp___1 = __VERIFIER_nondet_int() [L936] COND TRUE \read(tmp___1) [L938] CALL stopSystem() [L868] COND FALSE !(\read(pumpRunning)) [L875] systemActive = 0 [L938] RET stopSystem() [L945] CALL timeShift() [L702] COND FALSE !(\read(pumpRunning)) [L709] COND FALSE !(\read(systemActive)) [L717] CALL __utac_acc__Specification3_spec__1() [L151] int tmp ; [L152] int tmp___0 ; [L153] int tmp___1 ; [L157] CALL, EXPR isMethaneLevelCritical() [L226] int retValue_acc ; [L229] retValue_acc = methaneLevelCritical [L230] return (retValue_acc); [L157] RET, EXPR isMethaneLevelCritical() [L157] tmp = isMethaneLevelCritical() [L159] COND FALSE !(\read(tmp)) [L163] CALL, EXPR getWaterLevel() [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp___0 = getWaterLevel() [L165] COND TRUE tmp___0 == 2 [L167] CALL, EXPR isPumpRunning() [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] tmp___1 = isPumpRunning() [L169] COND FALSE !(\read(tmp___1)) [L173] CALL __automaton_fail() [L320] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product44.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 247 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 50.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 32.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 522 SDtfs, 1616 SDslu, 618 SDs, 0 SdLazy, 2978 SolverSat, 1180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=954occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 3 MinimizatonAttempts, 519 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 16.3s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 62598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...