/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:39:48,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:39:48,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:39:48,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:39:48,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:39:48,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:39:48,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:39:48,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:39:48,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:39:48,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:39:48,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:39:48,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:39:48,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:39:48,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:39:48,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:39:48,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:39:48,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:39:48,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:39:48,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:39:48,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:39:48,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:39:48,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:39:48,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:39:48,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:39:48,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:39:48,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:39:48,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:39:48,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:39:48,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:39:48,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:39:48,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:39:48,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:39:48,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:39:48,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:39:48,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:39:48,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:39:48,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:39:48,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:39:48,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:39:48,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:39:48,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:39:48,750 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 11:39:48,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:39:48,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:39:48,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:39:48,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:39:48,802 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:39:48,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:39:48,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:39:48,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:39:48,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:39:48,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:39:48,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:39:48,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:39:48,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:39:48,804 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:39:48,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:39:48,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:39:48,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:39:48,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:39:48,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:39:48,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:39:48,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:39:48,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:39:48,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:39:48,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:39:48,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:39:48,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:39:48,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:39:48,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:39:48,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:39:48,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:39:49,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:39:49,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:39:49,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:39:49,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:39:49,226 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:39:49,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-10-29 11:39:49,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7f45eb67/3ce9862a52da4e3db8e89c152c011e30/FLAG5755aed15 [2020-10-29 11:39:50,141 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:39:50,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-10-29 11:39:50,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7f45eb67/3ce9862a52da4e3db8e89c152c011e30/FLAG5755aed15 [2020-10-29 11:39:50,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7f45eb67/3ce9862a52da4e3db8e89c152c011e30 [2020-10-29 11:39:50,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:39:50,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:39:50,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:39:50,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:39:50,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:39:50,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:39:50" (1/1) ... [2020-10-29 11:39:50,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473eb7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:50, skipping insertion in model container [2020-10-29 11:39:50,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:39:50" (1/1) ... [2020-10-29 11:39:50,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:39:50,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:39:50,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:39:50,835 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:39:50,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:39:51,029 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:39:51,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51 WrapperNode [2020-10-29 11:39:51,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:39:51,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:39:51,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:39:51,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:39:51,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (1/1) ... [2020-10-29 11:39:51,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (1/1) ... [2020-10-29 11:39:51,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (1/1) ... [2020-10-29 11:39:51,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (1/1) ... [2020-10-29 11:39:51,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (1/1) ... [2020-10-29 11:39:51,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (1/1) ... [2020-10-29 11:39:51,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (1/1) ... [2020-10-29 11:39:51,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:39:51,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:39:51,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:39:51,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:39:51,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (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 11:39:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:39:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:39:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:39:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:39:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:39:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:39:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:39:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:39:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:39:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:39:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:39:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:39:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:39:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:39:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:39:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:39:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:39:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:39:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:39:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:39:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:39:51,347 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:39:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:39:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:39:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:39:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:39:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:39:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-29 11:39:51,348 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:39:51,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:39:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:39:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:39:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-29 11:39:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:39:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:39:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:39:51,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:39:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:39:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:39:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:39:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:39:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:39:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:39:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:39:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:39:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:39:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:39:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:39:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:39:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:39:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:39:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:39:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:39:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:39:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:39:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:39:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:39:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:39:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:39:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:39:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:39:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:39:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:39:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:39:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:39:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:39:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:39:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:39:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:39:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:39:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:39:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:39:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:39:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:39:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:39:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:39:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:39:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:39:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:39:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:39:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:39:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:39:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-29 11:39:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:39:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:39:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:39:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:39:51,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:39:52,759 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:39:52,760 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:39:52,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:39:52 BoogieIcfgContainer [2020-10-29 11:39:52,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:39:52,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:39:52,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:39:52,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:39:52,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:39:50" (1/3) ... [2020-10-29 11:39:52,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc48223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:39:52, skipping insertion in model container [2020-10-29 11:39:52,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:51" (2/3) ... [2020-10-29 11:39:52,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc48223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:39:52, skipping insertion in model container [2020-10-29 11:39:52,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:39:52" (3/3) ... [2020-10-29 11:39:52,773 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-10-29 11:39:52,785 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:39:52,791 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:39:52,811 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:39:52,840 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:39:52,840 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:39:52,840 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:39:52,841 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:39:52,841 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:39:52,841 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:39:52,841 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:39:52,841 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:39:52,868 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2020-10-29 11:39:52,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:39:52,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:39:52,881 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 11:39:52,882 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 11:39:52,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:39:52,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1406219602, now seen corresponding path program 1 times [2020-10-29 11:39:52,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:39:52,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000979864] [2020-10-29 11:39:52,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:39:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:53,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:53,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:54,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:56,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:56,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:39:56,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:39:56,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3050 [2020-10-29 11:39:56,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:56,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:39:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:39:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 11:39:56,773 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:39:56,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:39:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:56,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:56,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:56,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:56,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:56,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 11:39:56,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:56,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:39:56,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:56,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:39:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:57,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:57,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:57,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:57,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:39:57,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:57,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:57,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:39:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:57,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:57,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:57,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:57,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:57,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:39:57,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:57,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:57,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:39:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:57,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:57,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:57,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:39:57,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:57,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:39:57,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:39:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:57,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:57,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:57,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:39:57,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:39:57,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:57,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:39:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:39:57,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:39:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:39:57,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:39:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:57,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:39:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:57,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:39:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:39:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:57,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:39:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:57,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:57,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:57,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:57,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:57,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:57,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:57,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:39:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:39:57,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:39:57,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:39:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:39:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:39:57,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:39:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:39:57,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:39:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:39:57,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:39:57,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:39:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:39:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:39:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:39:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:39:57,115 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 11:39:57,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000979864] [2020-10-29 11:39:57,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:39:57,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:39:57,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408372946] [2020-10-29 11:39:57,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:39:57,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:39:57,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:39:57,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:39:57,149 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 4 states. [2020-10-29 11:39:57,711 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:40:01,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:40:01,041 INFO L93 Difference]: Finished difference Result 538 states and 707 transitions. [2020-10-29 11:40:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:40:01,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:40:01,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:40:01,061 INFO L225 Difference]: With dead ends: 538 [2020-10-29 11:40:01,061 INFO L226 Difference]: Without dead ends: 353 [2020-10-29 11:40:01,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:40:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-29 11:40:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 285. [2020-10-29 11:40:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-10-29 11:40:01,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 346 transitions. [2020-10-29 11:40:01,295 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 346 transitions. Word has length 53 [2020-10-29 11:40:01,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:40:01,296 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 346 transitions. [2020-10-29 11:40:01,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:40:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 346 transitions. [2020-10-29 11:40:01,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-29 11:40:01,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:40:01,303 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] [2020-10-29 11:40:01,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:40:01,303 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 11:40:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:40:01,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1844653283, now seen corresponding path program 1 times [2020-10-29 11:40:01,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:40:01,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421482848] [2020-10-29 11:40:01,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:40:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:01,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:02,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:02,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 11:40:02,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:02,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-29 11:40:02,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:02,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 11:40:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:40:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 11:40:02,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:40:02,844 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:40:02,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:40:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:02,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:02,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:02,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:02,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 11:40:02,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:02,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:40:02,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:02,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:40:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:02,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:02,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:02,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:40:02,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:02,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:02,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:02,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:40:02,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:40:02,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:40:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:02,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:02,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:02,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:40:02,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:02,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:02,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:02,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:02,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:40:02,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:02,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:40:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:02,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:02,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:02,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:02,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:40:02,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:02,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:02,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:02,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:02,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:40:02,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:02,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:40:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:02,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:02,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:02,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:40:02,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:02,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:02,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:40:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 11:40:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:03,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:03,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:40:03,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:40:03,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:03,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:40:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:03,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 11:40:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:03,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:03,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:03,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:03,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:03,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:40:03,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:03,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:03,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:40:03,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:03,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 11:40:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:03,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:03,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:03,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:03,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:40:03,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:03,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:03,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:40:03,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:40:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:03,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 11:40:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:03,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:03,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:03,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:03,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:03,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:03,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:40:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:40:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:40:03,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:03,066 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 11:40:03,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421482848] [2020-10-29 11:40:03,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:40:03,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:40:03,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656768191] [2020-10-29 11:40:03,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:40:03,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:40:03,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:40:03,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:40:03,071 INFO L87 Difference]: Start difference. First operand 285 states and 346 transitions. Second operand 8 states. [2020-10-29 11:40:03,634 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:40:05,923 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:40:06,468 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:40:06,925 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:40:07,300 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:40:09,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:40:09,108 INFO L93 Difference]: Finished difference Result 924 states and 1248 transitions. [2020-10-29 11:40:09,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 11:40:09,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-29 11:40:09,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:40:09,117 INFO L225 Difference]: With dead ends: 924 [2020-10-29 11:40:09,117 INFO L226 Difference]: Without dead ends: 663 [2020-10-29 11:40:09,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-29 11:40:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2020-10-29 11:40:09,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 552. [2020-10-29 11:40:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-10-29 11:40:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 690 transitions. [2020-10-29 11:40:09,295 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 690 transitions. Word has length 64 [2020-10-29 11:40:09,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:40:09,295 INFO L481 AbstractCegarLoop]: Abstraction has 552 states and 690 transitions. [2020-10-29 11:40:09,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:40:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 690 transitions. [2020-10-29 11:40:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:40:09,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:40:09,301 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 11:40:09,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:40:09,302 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 11:40:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:40:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash 153185847, now seen corresponding path program 1 times [2020-10-29 11:40:09,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:40:09,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751278401] [2020-10-29 11:40:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:40:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:09,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:09,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:09,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:12,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:14,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:14,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 11:40:14,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:40:14,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 11:40:14,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:14,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 11:40:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:40:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 11:40:14,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:14,779 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:40:14,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:40:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:14,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:14,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 11:40:14,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:14,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:40:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:14,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:40:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:14,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:14,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:14,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:40:14,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:14,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:14,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:40:14,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:14,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:40:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:14,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:14,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:14,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:40:14,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:14,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:14,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:14,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:14,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:40:14,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:40:14,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:40:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:14,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:14,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:14,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:14,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:40:14,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:14,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:40:14,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:14,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:40:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:14,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:14,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:14,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:40:14,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:14,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:14,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:14,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:40:14,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:15,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 11:40:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:15,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:15,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:15,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:40:15,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:15,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:40:15,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:15,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:40:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:15,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:40:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:15,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:15,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:15,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:15,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:40:15,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:15,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:40:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:40:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:40:15,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:15,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 11:40:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:15,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:15,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:15,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:15,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:15,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:40:15,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:15,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:40:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:40:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:15,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 11:40:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:15,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:15,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:15,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:15,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:15,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:40:15,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:15,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:40:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:40:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:40:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:15,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 11:40:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:40:15,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:40:15,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:40:15,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:40:15,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:40:15,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:40:15,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:40:15,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:40:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:40:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:40:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:40:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:40:15,114 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 11:40:15,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751278401] [2020-10-29 11:40:15,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:40:15,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:40:15,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468580781] [2020-10-29 11:40:15,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:40:15,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:40:15,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:40:15,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:40:15,119 INFO L87 Difference]: Start difference. First operand 552 states and 690 transitions. Second operand 11 states. [2020-10-29 11:40:15,693 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:40:16,799 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:40:18,876 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:40:19,863 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:40:20,307 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:40:21,023 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:40:21,537 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:40:25,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:40:25,711 INFO L93 Difference]: Finished difference Result 1343 states and 1933 transitions. [2020-10-29 11:40:25,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 11:40:25,712 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-10-29 11:40:25,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:40:25,722 INFO L225 Difference]: With dead ends: 1343 [2020-10-29 11:40:25,722 INFO L226 Difference]: Without dead ends: 962 [2020-10-29 11:40:25,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2020-10-29 11:40:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2020-10-29 11:40:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 741. [2020-10-29 11:40:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-10-29 11:40:25,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 905 transitions. [2020-10-29 11:40:25,959 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 905 transitions. Word has length 68 [2020-10-29 11:40:25,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:40:25,959 INFO L481 AbstractCegarLoop]: Abstraction has 741 states and 905 transitions. [2020-10-29 11:40:25,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:40:25,960 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 905 transitions. [2020-10-29 11:40:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:40:25,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:40:25,964 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 11:40:25,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:40:25,964 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 11:40:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:40:25,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1681406473, now seen corresponding path program 1 times [2020-10-29 11:40:25,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:40:25,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331897259] [2020-10-29 11:40:25,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:40:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:40:26,014 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:40:26,014 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:40:26,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:40:26,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:40:26 BoogieIcfgContainer [2020-10-29 11:40:26,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:40:26,045 INFO L168 Benchmark]: Toolchain (without parser) took 35625.07 ms. Allocated memory was 151.0 MB in the beginning and 558.9 MB in the end (delta: 407.9 MB). Free memory was 125.2 MB in the beginning and 377.1 MB in the end (delta: -251.9 MB). Peak memory consumption was 157.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:40:26,046 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 151.0 MB. Free memory was 122.1 MB in the beginning and 122.0 MB in the end (delta: 141.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:40:26,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.48 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 101.8 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:40:26,047 INFO L168 Benchmark]: Boogie Preprocessor took 218.86 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 131.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:40:26,048 INFO L168 Benchmark]: RCFGBuilder took 1509.10 ms. Allocated memory is still 151.0 MB. Free memory was 131.3 MB in the beginning and 120.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 86.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:40:26,049 INFO L168 Benchmark]: TraceAbstraction took 33278.47 ms. Allocated memory was 151.0 MB in the beginning and 558.9 MB in the end (delta: 407.9 MB). Free memory was 119.7 MB in the beginning and 377.1 MB in the end (delta: -257.5 MB). Peak memory consumption was 150.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:40:26,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 151.0 MB. Free memory was 122.1 MB in the beginning and 122.0 MB in the end (delta: 141.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 597.48 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 101.8 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 218.86 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 131.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1509.10 ms. Allocated memory is still 151.0 MB. Free memory was 131.3 MB in the beginning and 120.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 86.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 33278.47 ms. Allocated memory was 151.0 MB in the beginning and 558.9 MB in the end (delta: 407.9 MB). Free memory was 119.7 MB in the beginning and 377.1 MB in the end (delta: -257.5 MB). Peak memory consumption was 150.9 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; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] 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() [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 [L952] COND TRUE 1 [L954] COND TRUE splverifierCounter < 4 [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) [L964] CALL waterRise() [L607] COND TRUE waterLevel < 2 [L608] waterLevel = waterLevel + 1 [L964] RET waterRise() [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L988] tmp___1 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___1) [L992] CALL stopSystem() [L922] COND FALSE !(\read(pumpRunning)) [L929] systemActive = 0 [L992] RET stopSystem() [L999] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND FALSE !(\read(systemActive)) [L718] CALL __utac_acc__Specification3_spec__1() [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L558] CALL, EXPR isMethaneLevelCritical() [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); [L558] RET, EXPR isMethaneLevelCritical() [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L568] CALL, EXPR isPumpRunning() [L836] int retValue_acc ; [L839] retValue_acc = pumpRunning [L840] return (retValue_acc); [L568] RET, EXPR isPumpRunning() [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) [L574] CALL __automaton_fail() [L1015] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product56.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 270 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 625 SDtfs, 1243 SDslu, 771 SDs, 0 SdLazy, 4307 SolverSat, 868 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=741occurred 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, 400 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 60664 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...