/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=DEEPEST --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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:11:23,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:11:23,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:11:23,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:11:23,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:11:23,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:11:23,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:11:23,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:11:23,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:11:23,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:11:23,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:11:23,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:11:23,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:11:23,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:11:23,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:11:23,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:11:23,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:11:23,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:11:23,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:11:23,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:11:23,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:11:23,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:11:23,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:11:23,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:11:23,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:11:23,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:11:23,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:11:23,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:11:23,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:11:23,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:11:23,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:11:23,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:11:23,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:11:23,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:11:23,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:11:23,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:11:23,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:11:23,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:11:23,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:11:23,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:11:23,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:11:23,619 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 [2020-10-27 22:11:23,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:11:23,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:11:23,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:11:23,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:11:23,645 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:11:23,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:11:23,646 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:11:23,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:11:23,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:11:23,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:11:23,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:11:23,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:11:23,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:11:23,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:11:23,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:11:23,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:11:23,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:11:23,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:11:23,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:11:23,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:11:23,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:11:23,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:11:23,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:11:23,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:11:23,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:11:23,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:11:23,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:11:23,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:11:23,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:11:23,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:11:24,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:11:24,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:11:24,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:11:24,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:11:24,071 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:11:24,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-10-27 22:11:24,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c403e1fc/0656c0fb153649659f01d5539671da78/FLAGfe023ebcb [2020-10-27 22:11:24,919 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:11:24,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-10-27 22:11:24,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c403e1fc/0656c0fb153649659f01d5539671da78/FLAGfe023ebcb [2020-10-27 22:11:25,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c403e1fc/0656c0fb153649659f01d5539671da78 [2020-10-27 22:11:25,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:11:25,163 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:11:25,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:11:25,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:11:25,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:11:25,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608853af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25, skipping insertion in model container [2020-10-27 22:11:25,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:11:25,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:11:25,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:11:25,607 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:11:25,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:11:25,803 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:11:25,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25 WrapperNode [2020-10-27 22:11:25,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:11:25,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:11:25,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:11:25,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:11:25,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (1/1) ... [2020-10-27 22:11:25,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:11:25,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:11:25,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:11:25,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:11:25,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (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 [2020-10-27 22:11:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:11:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:11:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:11:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:11:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:11:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:11:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:11:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:11:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:11:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:11:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 22:11:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:11:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:11:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:11:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:11:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:11:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:11:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:11:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:11:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:11:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:11:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:11:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:11:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:11:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 22:11:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 22:11:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:11:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 22:11:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:11:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:11:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:11:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:11:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:11:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 22:11:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 22:11:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:11:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:11:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:11:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:11:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:11:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:11:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:11:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:11:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:11:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:11:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:11:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:11:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:11:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:11:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:11:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:11:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:11:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:11:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 22:11:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:11:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:11:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:11:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:11:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:11:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:11:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:11:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:11:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:11:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:11:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:11:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:11:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:11:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:11:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:11:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:11:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:11:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:11:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:11:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:11:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:11:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:11:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:11:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:11:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:11:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:11:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 22:11:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:11:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:11:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:11:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:11:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:11:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 22:11:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 22:11:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 22:11:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:11:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 22:11:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:11:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:11:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:11:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:11:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:11:27,691 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:11:27,691 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:11:27,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:11:27 BoogieIcfgContainer [2020-10-27 22:11:27,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:11:27,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:11:27,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:11:27,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:11:27,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:11:25" (1/3) ... [2020-10-27 22:11:27,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a4f915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:11:27, skipping insertion in model container [2020-10-27 22:11:27,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:25" (2/3) ... [2020-10-27 22:11:27,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a4f915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:11:27, skipping insertion in model container [2020-10-27 22:11:27,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:11:27" (3/3) ... [2020-10-27 22:11:27,703 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-10-27 22:11:27,716 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:11:27,722 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:11:27,739 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:11:27,770 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:11:27,770 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:11:27,770 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:11:27,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:11:27,771 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:11:27,771 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:11:27,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:11:27,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:11:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states. [2020-10-27 22:11:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:11:27,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:27,809 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] [2020-10-27 22:11:27,809 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]=== [2020-10-27 22:11:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:27,817 INFO L82 PathProgramCache]: Analyzing trace with hash -2099144301, now seen corresponding path program 1 times [2020-10-27 22:11:27,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:27,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089939309] [2020-10-27 22:11:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:28,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:28,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:29,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:11:31,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:11:31,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2871 [2020-10-27 22:11:31,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:11:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:11:31,514 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:31,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:31,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 22:11:31,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:31,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:31,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:31,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:31,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:31,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:31,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:31,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:31,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:31,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:11:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:31,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:31,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:11:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:31,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:31,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:11:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:31,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:31,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:31,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:31,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:31,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:31,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:31,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089939309] [2020-10-27 22:11:31,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:31,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:11:31,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182694044] [2020-10-27 22:11:31,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:11:31,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:31,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:11:31,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:11:31,702 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 3 states. [2020-10-27 22:11:33,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:33,305 INFO L93 Difference]: Finished difference Result 305 states and 400 transitions. [2020-10-27 22:11:33,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:11:33,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:11:33,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:33,321 INFO L225 Difference]: With dead ends: 305 [2020-10-27 22:11:33,322 INFO L226 Difference]: Without dead ends: 163 [2020-10-27 22:11:33,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:11:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-27 22:11:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 130. [2020-10-27 22:11:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-27 22:11:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 153 transitions. [2020-10-27 22:11:33,426 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 153 transitions. Word has length 53 [2020-10-27 22:11:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:33,426 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 153 transitions. [2020-10-27 22:11:33,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:11:33,426 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 153 transitions. [2020-10-27 22:11:33,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:11:33,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:33,430 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] [2020-10-27 22:11:33,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:11:33,431 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]=== [2020-10-27 22:11:33,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:33,432 INFO L82 PathProgramCache]: Analyzing trace with hash -616480503, now seen corresponding path program 1 times [2020-10-27 22:11:33,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:33,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316989477] [2020-10-27 22:11:33,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:33,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:33,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:33,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:36,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:36,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:11:36,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:11:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3135 [2020-10-27 22:11:36,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:11:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:11:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,065 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:37,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:37,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 22:11:37,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:37,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:37,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:37,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:37,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:37,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:37,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:37,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:37,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:37,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:37,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:11:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:37,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:37,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:11:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:37,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:37,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:11:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:37,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:37,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:37,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:37,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:37,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:37,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:37,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316989477] [2020-10-27 22:11:37,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:37,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:11:37,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179350098] [2020-10-27 22:11:37,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:11:37,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:37,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:11:37,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:11:37,205 INFO L87 Difference]: Start difference. First operand 130 states and 153 transitions. Second operand 4 states. [2020-10-27 22:11:37,889 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:11:39,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:39,190 INFO L93 Difference]: Finished difference Result 231 states and 283 transitions. [2020-10-27 22:11:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:11:39,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:11:39,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:39,194 INFO L225 Difference]: With dead ends: 231 [2020-10-27 22:11:39,194 INFO L226 Difference]: Without dead ends: 147 [2020-10-27 22:11:39,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:11:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-27 22:11:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2020-10-27 22:11:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-27 22:11:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-10-27 22:11:39,249 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 54 [2020-10-27 22:11:39,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:39,249 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-10-27 22:11:39,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:11:39,249 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-10-27 22:11:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 22:11:39,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:39,252 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] [2020-10-27 22:11:39,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:11:39,253 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]=== [2020-10-27 22:11:39,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:39,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1407850776, now seen corresponding path program 1 times [2020-10-27 22:11:39,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:39,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878564869] [2020-10-27 22:11:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:39,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:39,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 22:11:41,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:11:41,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1814 [2020-10-27 22:11:41,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:11:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:41,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 22:11:41,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,546 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:41,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:41,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 22:11:41,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:11:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:41,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:41,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:41,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:41,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:41,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:11:41,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:41,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:41,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:41,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:41,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:41,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:41,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:11:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:41,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:41,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:41,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:41,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:41,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:11:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:41,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:41,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:41,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:11:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:41,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:41,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:41,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:41,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:41,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:41,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:41,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878564869] [2020-10-27 22:11:41,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:41,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 22:11:41,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749294320] [2020-10-27 22:11:41,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 22:11:41,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:41,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 22:11:41,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:11:41,774 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 5 states. [2020-10-27 22:11:42,263 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:11:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:43,350 INFO L93 Difference]: Finished difference Result 244 states and 301 transitions. [2020-10-27 22:11:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:11:43,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-27 22:11:43,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:43,358 INFO L225 Difference]: With dead ends: 244 [2020-10-27 22:11:43,358 INFO L226 Difference]: Without dead ends: 147 [2020-10-27 22:11:43,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:11:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-27 22:11:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2020-10-27 22:11:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-27 22:11:43,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 140 transitions. [2020-10-27 22:11:43,434 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 140 transitions. Word has length 59 [2020-10-27 22:11:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:43,434 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 140 transitions. [2020-10-27 22:11:43,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 22:11:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 140 transitions. [2020-10-27 22:11:43,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 22:11:43,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:43,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:11:43,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:11:43,443 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]=== [2020-10-27 22:11:43,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:43,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1767573300, now seen corresponding path program 1 times [2020-10-27 22:11:43,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:43,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978759400] [2020-10-27 22:11:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:44,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:44,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 22:11:44,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-10-27 22:11:44,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:11:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 22:11:44,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:44,990 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:44,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:45,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-27 22:11:45,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:11:45,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:45,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:45,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:45,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:45,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:45,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:45,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:45,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:45,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:45,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 22:11:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 22:11:45,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:11:45,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 22:11:45,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:11:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:11:45,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:45,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:45,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:11:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:45,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:11:45,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:45,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 22:11:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:45,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:45,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:11:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:45,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:11:45,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:11:45,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:45,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:45,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:11:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:45,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:45,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:45,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:45,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:45,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:45,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:45,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:45,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:45,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:45,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:45,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978759400] [2020-10-27 22:11:45,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:45,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:11:45,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721155710] [2020-10-27 22:11:45,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:11:45,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:45,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:11:45,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:11:45,281 INFO L87 Difference]: Start difference. First operand 121 states and 140 transitions. Second operand 9 states. [2020-10-27 22:11:45,914 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:11:48,158 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:11:48,668 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:11:49,098 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:11:49,675 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:11:50,129 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:11:50,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:50,882 INFO L93 Difference]: Finished difference Result 374 states and 493 transitions. [2020-10-27 22:11:50,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:11:50,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-27 22:11:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:50,888 INFO L225 Difference]: With dead ends: 374 [2020-10-27 22:11:50,888 INFO L226 Difference]: Without dead ends: 277 [2020-10-27 22:11:50,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:11:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-27 22:11:50,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 219. [2020-10-27 22:11:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-27 22:11:50,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 262 transitions. [2020-10-27 22:11:50,969 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 262 transitions. Word has length 72 [2020-10-27 22:11:50,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:50,970 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 262 transitions. [2020-10-27 22:11:50,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:11:50,970 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 262 transitions. [2020-10-27 22:11:50,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 22:11:50,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:50,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:11:50,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:11:50,973 INFO L429 AbstractCegarLoop]: === Iteration 5 === [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]=== [2020-10-27 22:11:50,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:50,973 INFO L82 PathProgramCache]: Analyzing trace with hash 2044979086, now seen corresponding path program 1 times [2020-10-27 22:11:50,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:50,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776747030] [2020-10-27 22:11:50,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:11:51,024 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:11:51,024 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:11:51,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:11:51,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:11:51 BoogieIcfgContainer [2020-10-27 22:11:51,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:11:51,054 INFO L168 Benchmark]: Toolchain (without parser) took 25894.87 ms. Allocated memory was 125.8 MB in the beginning and 434.1 MB in the end (delta: 308.3 MB). Free memory was 100.3 MB in the beginning and 303.6 MB in the end (delta: -203.3 MB). Peak memory consumption was 105.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:51,055 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 85.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:11:51,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.48 ms. Allocated memory is still 125.8 MB. Free memory was 99.7 MB in the beginning and 78.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:51,057 INFO L168 Benchmark]: Boogie Preprocessor took 91.63 ms. Allocated memory is still 125.8 MB. Free memory was 78.1 MB in the beginning and 74.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:51,058 INFO L168 Benchmark]: RCFGBuilder took 1795.96 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 74.2 MB in the beginning and 110.0 MB in the end (delta: -35.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:51,059 INFO L168 Benchmark]: TraceAbstraction took 23356.41 ms. Allocated memory was 165.7 MB in the beginning and 434.1 MB in the end (delta: 268.4 MB). Free memory was 109.5 MB in the beginning and 303.6 MB in the end (delta: -194.2 MB). Peak memory consumption was 74.3 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:51,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 85.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 639.48 ms. Allocated memory is still 125.8 MB. Free memory was 99.7 MB in the beginning and 78.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.63 ms. Allocated memory is still 125.8 MB. Free memory was 78.1 MB in the beginning and 74.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1795.96 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 74.2 MB in the beginning and 110.0 MB in the end (delta: -35.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23356.41 ms. Allocated memory was 165.7 MB in the beginning and 434.1 MB in the end (delta: 268.4 MB). Free memory was 109.5 MB in the beginning and 303.6 MB in the end (delta: -194.2 MB). Peak memory consumption was 74.3 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L138] int cleanupTimeShifts = 4; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int pumpRunning = 0; [L678] int systemActive = 1; [L217] int retValue_acc ; [L218] int tmp ; [L222] FCALL select_helpers() [L223] FCALL select_features() [L224] CALL, EXPR valid_product() [L916] int retValue_acc ; [L919] retValue_acc = 1 [L920] return (retValue_acc); [L224] RET, EXPR valid_product() [L224] tmp = valid_product() [L226] COND TRUE \read(tmp) [L228] FCALL setup() [L229] CALL runTest() [L208] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp) [L629] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L629] RET waterRise() [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND FALSE !(\read(tmp___2)) [L653] tmp___1 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___1) [L662] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__methaneQuery() [L714] int tmp ; [L717] COND FALSE !(\read(pumpRunning)) [L732] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__methaneQuery() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L932] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L932] RET, EXPR isMethaneLevelCritical() [L932] tmp = isMethaneLevelCritical() [L934] COND FALSE !(\read(tmp)) [L938] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L938] RET, EXPR getWaterLevel() [L938] tmp___0 = getWaterLevel() [L940] COND TRUE tmp___0 == 2 [L942] CALL, EXPR isPumpRunning() [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] return (retValue_acc); [L942] RET, EXPR isPumpRunning() [L942] tmp___1 = isPumpRunning() [L944] COND FALSE !(\read(tmp___1)) [L948] CALL __automaton_fail() [L885] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product30.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 250 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 453 SDtfs, 713 SDslu, 196 SDs, 0 SdLazy, 1139 SolverSat, 455 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 143 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 314 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 234 ConstructedInterpolants, 0 QuantifiedInterpolants, 72158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...