/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:52:43,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:52:43,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:52:43,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:52:43,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:52:43,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:52:43,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:52:43,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:52:43,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:52:43,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:52:43,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:52:43,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:52:43,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:52:43,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:52:43,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:52:43,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:52:43,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:52:43,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:52:43,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:52:43,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:52:43,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:52:43,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:52:43,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:52:43,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:52:43,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:52:43,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:52:43,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:52:43,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:52:43,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:52:43,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:52:43,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:52:43,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:52:44,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:52:44,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:52:44,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:52:44,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:52:44,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:52:44,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:52:44,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:52:44,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:52:44,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:52:44,014 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 [2020-10-28 16:52:44,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:52:44,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:52:44,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:52:44,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:52:44,077 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:52:44,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:52:44,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:52:44,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:52:44,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:52:44,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:52:44,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:52:44,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:52:44,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:52:44,080 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:52:44,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:52:44,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:52:44,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:52:44,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:52:44,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:52:44,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:52:44,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:52:44,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:52:44,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:52:44,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:52:44,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:52:44,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:52:44,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:52:44,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:52:44,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:52:44,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:52:44,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:52:44,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:52:44,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:52:44,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:52:44,539 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:52:44,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-10-28 16:52:44,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8ef2d53e/d6a9c0cd451245acb45e0beaf9e4b5dd/FLAGcc0dbcf3f [2020-10-28 16:52:45,292 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:52:45,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-10-28 16:52:45,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8ef2d53e/d6a9c0cd451245acb45e0beaf9e4b5dd/FLAGcc0dbcf3f [2020-10-28 16:52:45,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8ef2d53e/d6a9c0cd451245acb45e0beaf9e4b5dd [2020-10-28 16:52:45,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:52:45,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:52:45,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:52:45,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:52:45,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:52:45,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:52:45" (1/1) ... [2020-10-28 16:52:45,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a50f6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:45, skipping insertion in model container [2020-10-28 16:52:45,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:52:45" (1/1) ... [2020-10-28 16:52:45,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:52:45,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:52:46,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:52:46,028 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:52:46,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:52:46,204 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:52:46,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46 WrapperNode [2020-10-28 16:52:46,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:52:46,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:52:46,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:52:46,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:52:46,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (1/1) ... [2020-10-28 16:52:46,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (1/1) ... [2020-10-28 16:52:46,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (1/1) ... [2020-10-28 16:52:46,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (1/1) ... [2020-10-28 16:52:46,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (1/1) ... [2020-10-28 16:52:46,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (1/1) ... [2020-10-28 16:52:46,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (1/1) ... [2020-10-28 16:52:46,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:52:46,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:52:46,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:52:46,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:52:46,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (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 [2020-10-28 16:52:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:52:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:52:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:52:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:52:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:52:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:52:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:52:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:52:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:52:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:52:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:52:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:52:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:52:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:52:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:52:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:52:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:52:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:52:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:52:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:52:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:52:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:52:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-28 16:52:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:52:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:52:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:52:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:52:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:52:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:52:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:52:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:52:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:52:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:52:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:52:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:52:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:52:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:52:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:52:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:52:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:52:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:52:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:52:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:52:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:52:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:52:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:52:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:52:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:52:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:52:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:52:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:52:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:52:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:52:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:52:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:52:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:52:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:52:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:52:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:52:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:52:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:52:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:52:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:52:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:52:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:52:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:52:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:52:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:52:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:52:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:52:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-28 16:52:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:52:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:52:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:52:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:52:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:52:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:52:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:52:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:52:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:52:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:52:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:52:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:52:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:52:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:52:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:52:47,709 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:52:47,710 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:52:47,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:52:47 BoogieIcfgContainer [2020-10-28 16:52:47,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:52:47,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:52:47,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:52:47,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:52:47,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:52:45" (1/3) ... [2020-10-28 16:52:47,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564463c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:52:47, skipping insertion in model container [2020-10-28 16:52:47,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:52:46" (2/3) ... [2020-10-28 16:52:47,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564463c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:52:47, skipping insertion in model container [2020-10-28 16:52:47,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:52:47" (3/3) ... [2020-10-28 16:52:47,721 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-10-28 16:52:47,734 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:52:47,760 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:52:47,775 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:52:47,817 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:52:47,818 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:52:47,818 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:52:47,818 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:52:47,819 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:52:47,819 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:52:47,819 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:52:47,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:52:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2020-10-28 16:52:47,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:52:47,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:52:47,862 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] [2020-10-28 16:52:47,863 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:52:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:52:47,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1535182622, now seen corresponding path program 1 times [2020-10-28 16:52:47,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:52:47,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133074885] [2020-10-28 16:52:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:52:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:48,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:48,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:49,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:51,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:51,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:52:51,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:52:51,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3265 [2020-10-28 16:52:51,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:51,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:52:51,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 16:52:51,904 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:52:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:52:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:51,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:51,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:51,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:51,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 16:52:51,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:51,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 16:52:51,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:52:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:52,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:52,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:52,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:52:52,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:52,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:52,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:52,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:52,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:52,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:52,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:52,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:52,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:52:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:52,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:52,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:52,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:52:52,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:52,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:52:52,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:52,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:52,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:52:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:52,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:52,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:52,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:52,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:52:52,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:52,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:52:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:52:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:52,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:52,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:52,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:52:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:52,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:52,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:52,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:52,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:52,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:52,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:52,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:52,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:52,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:52:52,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:52,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:52,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:52:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:52,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:52,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:52,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:52,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:52,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:52,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:52,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:52:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:52,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:52,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:52:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:52,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:52,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:52,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:52,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:52,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:52,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:52:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:52,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:52:52,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133074885] [2020-10-28 16:52:52,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:52:52,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:52:52,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321514401] [2020-10-28 16:52:52,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:52:52,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:52:52,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:52:52,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:52:52,100 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 3 states. [2020-10-28 16:52:53,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:52:53,112 INFO L93 Difference]: Finished difference Result 225 states and 300 transitions. [2020-10-28 16:52:53,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:52:53,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:52:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:52:53,126 INFO L225 Difference]: With dead ends: 225 [2020-10-28 16:52:53,127 INFO L226 Difference]: Without dead ends: 121 [2020-10-28 16:52:53,131 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 [2020-10-28 16:52:53,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-28 16:52:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 92. [2020-10-28 16:52:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-28 16:52:53,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2020-10-28 16:52:53,211 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 53 [2020-10-28 16:52:53,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:52:53,212 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2020-10-28 16:52:53,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:52:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-10-28 16:52:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:52:53,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:52:53,215 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] [2020-10-28 16:52:53,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:52:53,216 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]=== [2020-10-28 16:52:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:52:53,217 INFO L82 PathProgramCache]: Analyzing trace with hash -277087418, now seen corresponding path program 1 times [2020-10-28 16:52:53,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:52:53,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003374476] [2020-10-28 16:52:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:52:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:53,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:53,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:52:56,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:52:56,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3055 [2020-10-28 16:52:56,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:52:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:52:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:52:56,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,692 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:52:56,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:52:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:56,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 16:52:56,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:52:56,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:52:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:52:56,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:56,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:56,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:52:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:52:56,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:56,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:52:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:56,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:56,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:56,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:52:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:52:56,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:56,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:52:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:52:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:56,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:56,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:52:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:52:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:56,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:56,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:52:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:52:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:56,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:56,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:56,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:52:56,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:52:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:52:56,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:56,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:52:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:52:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:52:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:52:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:52:56,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003374476] [2020-10-28 16:52:56,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:52:56,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:52:56,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699816447] [2020-10-28 16:52:56,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:52:56,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:52:56,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:52:56,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:52:56,807 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 4 states. [2020-10-28 16:52:57,352 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:52:57,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:52:57,914 INFO L93 Difference]: Finished difference Result 151 states and 183 transitions. [2020-10-28 16:52:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:52:57,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:52:57,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:52:57,917 INFO L225 Difference]: With dead ends: 151 [2020-10-28 16:52:57,917 INFO L226 Difference]: Without dead ends: 105 [2020-10-28 16:52:57,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:52:57,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-28 16:52:57,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2020-10-28 16:52:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 16:52:57,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2020-10-28 16:52:57,978 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 54 [2020-10-28 16:52:57,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:52:57,978 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2020-10-28 16:52:57,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:52:57,978 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2020-10-28 16:52:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 16:52:57,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:52:57,991 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] [2020-10-28 16:52:57,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:52:57,992 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]=== [2020-10-28 16:52:57,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:52:57,992 INFO L82 PathProgramCache]: Analyzing trace with hash 777188674, now seen corresponding path program 1 times [2020-10-28 16:52:57,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:52:57,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886202586] [2020-10-28 16:52:57,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:52:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:52:58,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:58,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:52:59,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:52:59,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 16:52:59,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:52:59,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1721 [2020-10-28 16:52:59,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:52:59,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:52:59,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:52:59,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:52:59,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 16:52:59,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:00,112 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:00,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:00,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 16:53:00,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:00,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:00,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:00,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:00,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:00,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:00,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:00,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:00,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:00,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:00,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:00,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:00,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:00,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:00,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:00,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:53:00,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:00,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:53:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:00,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:00,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:00,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:00,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:53:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:00,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:00,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:00,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:00,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:00,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:53:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:00,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:00,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:00,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 16:53:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:00,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:00,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:00,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:00,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:00,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:00,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:00,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:00,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:53:00,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886202586] [2020-10-28 16:53:00,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:00,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:53:00,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857579235] [2020-10-28 16:53:00,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:53:00,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:00,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:53:00,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:53:00,325 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand 5 states. [2020-10-28 16:53:00,702 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:01,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:01,388 INFO L93 Difference]: Finished difference Result 164 states and 201 transitions. [2020-10-28 16:53:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:53:01,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-28 16:53:01,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:01,392 INFO L225 Difference]: With dead ends: 164 [2020-10-28 16:53:01,392 INFO L226 Difference]: Without dead ends: 105 [2020-10-28 16:53:01,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:53:01,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-28 16:53:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2020-10-28 16:53:01,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 16:53:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2020-10-28 16:53:01,435 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 59 [2020-10-28 16:53:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:01,436 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2020-10-28 16:53:01,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:53:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2020-10-28 16:53:01,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-28 16:53:01,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:01,437 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] [2020-10-28 16:53:01,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:53:01,437 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]=== [2020-10-28 16:53:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:01,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1431151936, now seen corresponding path program 1 times [2020-10-28 16:53:01,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:01,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667846223] [2020-10-28 16:53:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:01,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 16:53:02,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-10-28 16:53:02,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:53:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:02,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 16:53:02,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,709 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:02,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:02,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 16:53:02,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:02,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:02,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:02,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:02,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:02,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:02,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:02,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:02,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:02,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:02,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:02,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:02,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:02,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:02,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:53:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:02,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:02,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 16:53:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:02,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:02,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:02,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:02,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 16:53:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:02,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:02,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:53:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:02,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-28 16:53:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:02,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:02,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:02,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:02,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:02,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:02,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:02,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:53:02,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667846223] [2020-10-28 16:53:02,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:02,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:53:02,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111921494] [2020-10-28 16:53:02,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:53:02,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:02,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:53:02,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:53:02,912 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand 7 states. [2020-10-28 16:53:03,347 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:04,299 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:53:04,632 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:53:04,979 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:53:05,284 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:05,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:05,657 INFO L93 Difference]: Finished difference Result 211 states and 261 transitions. [2020-10-28 16:53:05,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 16:53:05,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-28 16:53:05,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:05,660 INFO L225 Difference]: With dead ends: 211 [2020-10-28 16:53:05,660 INFO L226 Difference]: Without dead ends: 152 [2020-10-28 16:53:05,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:53:05,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-28 16:53:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 137. [2020-10-28 16:53:05,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-28 16:53:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2020-10-28 16:53:05,747 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 62 [2020-10-28 16:53:05,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:05,748 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2020-10-28 16:53:05,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:53:05,748 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2020-10-28 16:53:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 16:53:05,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:05,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:53:05,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:53:05,754 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]=== [2020-10-28 16:53:05,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:05,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1950656102, now seen corresponding path program 1 times [2020-10-28 16:53:05,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:05,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654310419] [2020-10-28 16:53:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:05,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:06,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 16:53:07,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:53:07,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1349 [2020-10-28 16:53:07,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 16:53:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,425 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:07,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:07,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 16:53:07,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:07,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:07,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:07,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:07,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:07,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:07,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:07,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:07,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:07,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:07,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:07,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:07,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:07,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:07,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:53:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:07,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:07,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:07,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:07,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 16:53:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:07,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:53:07,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 16:53:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:07,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:53:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:07,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:07,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 16:53:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:07,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:07,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:07,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 16:53:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:07,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:07,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:07,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:07,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:53:07,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:07,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:07,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:53:07,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654310419] [2020-10-28 16:53:07,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:07,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:53:07,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030791977] [2020-10-28 16:53:07,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:53:07,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:07,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:53:07,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:53:07,612 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 5 states. [2020-10-28 16:53:07,975 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:08,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:08,524 INFO L93 Difference]: Finished difference Result 207 states and 249 transitions. [2020-10-28 16:53:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 16:53:08,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-10-28 16:53:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:08,528 INFO L225 Difference]: With dead ends: 207 [2020-10-28 16:53:08,528 INFO L226 Difference]: Without dead ends: 137 [2020-10-28 16:53:08,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:53:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-28 16:53:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 124. [2020-10-28 16:53:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-28 16:53:08,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 139 transitions. [2020-10-28 16:53:08,573 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 139 transitions. Word has length 66 [2020-10-28 16:53:08,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:08,573 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 139 transitions. [2020-10-28 16:53:08,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:53:08,573 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 139 transitions. [2020-10-28 16:53:08,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 16:53:08,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:08,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:53:08,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:53:08,575 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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]=== [2020-10-28 16:53:08,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:08,575 INFO L82 PathProgramCache]: Analyzing trace with hash 2138420474, now seen corresponding path program 1 times [2020-10-28 16:53:08,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:08,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580622444] [2020-10-28 16:53:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:53:08,614 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:53:08,614 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:53:08,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:53:08,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:53:08 BoogieIcfgContainer [2020-10-28 16:53:08,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:53:08,642 INFO L168 Benchmark]: Toolchain (without parser) took 23034.33 ms. Allocated memory was 151.0 MB in the beginning and 463.5 MB in the end (delta: 312.5 MB). Free memory was 125.1 MB in the beginning and 201.1 MB in the end (delta: -76.0 MB). Peak memory consumption was 236.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:08,643 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 123.5 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:53:08,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.16 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 104.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:08,644 INFO L168 Benchmark]: Boogie Preprocessor took 100.31 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 100.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:08,645 INFO L168 Benchmark]: RCFGBuilder took 1401.98 ms. Allocated memory is still 151.0 MB. Free memory was 100.6 MB in the beginning and 50.0 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:08,646 INFO L168 Benchmark]: TraceAbstraction took 20925.88 ms. Allocated memory was 151.0 MB in the beginning and 463.5 MB in the end (delta: 312.5 MB). Free memory was 49.5 MB in the beginning and 201.1 MB in the end (delta: -151.6 MB). Peak memory consumption was 161.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:08,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 123.5 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 587.16 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 104.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 100.31 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 100.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1401.98 ms. Allocated memory is still 151.0 MB. Free memory was 100.6 MB in the beginning and 50.0 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20925.88 ms. Allocated memory was 151.0 MB in the beginning and 463.5 MB in the end (delta: 312.5 MB). Free memory was 49.5 MB in the beginning and 201.1 MB in the end (delta: -151.6 MB). Peak memory consumption was 161.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L464] int pumpRunning = 0; [L465] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L781] int waterLevel = 1; [L782] int methaneLevelCritical = 0; [L758] int retValue_acc ; [L759] int tmp ; [L763] FCALL select_helpers() [L764] FCALL select_features() [L765] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L765] RET, EXPR valid_product() [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) [L769] FCALL setup() [L770] CALL runTest() [L752] CALL test() [L619] int splverifierCounter ; [L620] int tmp ; [L621] int tmp___0 ; [L622] int tmp___1 ; [L623] int tmp___2 ; [L626] splverifierCounter = 0 [L628] COND TRUE 1 [L630] COND TRUE splverifierCounter < 4 [L636] tmp = __VERIFIER_nondet_int() [L638] COND TRUE \read(tmp) [L640] CALL waterRise() [L799] COND TRUE waterLevel < 2 [L800] waterLevel = waterLevel + 1 [L640] RET waterRise() [L646] tmp___0 = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp___0)) [L656] tmp___2 = __VERIFIER_nondet_int() [L658] COND FALSE !(\read(tmp___2)) [L664] tmp___1 = __VERIFIER_nondet_int() [L666] COND TRUE \read(tmp___1) [L673] CALL timeShift() [L472] COND FALSE !(\read(pumpRunning)) [L479] COND TRUE \read(systemActive) [L481] FCALL processEnvironment() [L487] CALL __utac_acc__Specification3_spec__1() [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L588] CALL, EXPR isMethaneLevelCritical() [L820] int retValue_acc ; [L823] retValue_acc = methaneLevelCritical [L824] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] tmp = isMethaneLevelCritical() [L590] COND FALSE !(\read(tmp)) [L594] CALL, EXPR getWaterLevel() [L852] int retValue_acc ; [L855] retValue_acc = waterLevel [L856] return (retValue_acc); [L594] RET, EXPR getWaterLevel() [L594] tmp___0 = getWaterLevel() [L596] COND TRUE tmp___0 == 2 [L598] CALL, EXPR isPumpRunning() [L527] int retValue_acc ; [L530] retValue_acc = pumpRunning [L531] return (retValue_acc); [L598] RET, EXPR isPumpRunning() [L598] tmp___1 = isPumpRunning() [L600] COND FALSE !(\read(tmp___1)) [L604] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product02.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 213 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 393 SDtfs, 520 SDslu, 182 SDs, 0 SdLazy, 726 SolverSat, 324 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=0, 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, 5 MinimizatonAttempts, 101 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 85666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...