/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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:53:05,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:53:05,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:53:05,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:53:05,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:53:05,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:53:05,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:53:05,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:53:05,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:53:05,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:53:05,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:53:05,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:53:05,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:53:05,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:53:05,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:53:05,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:53:05,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:53:05,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:53:05,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:53:05,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:53:05,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:53:05,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:53:05,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:53:05,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:53:05,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:53:05,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:53:05,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:53:05,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:53:05,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:53:05,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:53:05,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:53:05,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:53:05,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:53:05,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:53:05,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:53:05,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:53:05,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:53:05,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:53:05,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:53:05,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:53:05,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:53:05,964 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 16:53:06,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:53:06,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:53:06,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:53:06,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:53:06,025 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:53:06,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:53:06,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:53:06,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:53:06,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:53:06,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:53:06,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:53:06,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:53:06,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:53:06,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:53:06,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:53:06,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:53:06,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:53:06,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:53:06,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:53:06,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:53:06,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:53:06,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:53:06,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:53:06,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:53:06,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:53:06,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:53:06,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:53:06,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:53:06,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:53:06,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:53:06,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:53:06,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:53:06,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:53:06,511 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:53:06,512 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:53:06,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-10-28 16:53:06,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f656dd4b7/344cbffc42c4410984719eff76a3e319/FLAGc9c524fd9 [2020-10-28 16:53:07,313 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:53:07,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-10-28 16:53:07,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f656dd4b7/344cbffc42c4410984719eff76a3e319/FLAGc9c524fd9 [2020-10-28 16:53:07,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f656dd4b7/344cbffc42c4410984719eff76a3e319 [2020-10-28 16:53:07,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:53:07,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:53:07,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:53:07,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:53:07,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:53:07,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:53:07" (1/1) ... [2020-10-28 16:53:07,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333dc220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:07, skipping insertion in model container [2020-10-28 16:53:07,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:53:07" (1/1) ... [2020-10-28 16:53:07,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:53:07,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:53:08,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:53:08,179 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:53:08,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:53:08,383 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:53:08,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08 WrapperNode [2020-10-28 16:53:08,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:53:08,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:53:08,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:53:08,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:53:08,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (1/1) ... [2020-10-28 16:53:08,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (1/1) ... [2020-10-28 16:53:08,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (1/1) ... [2020-10-28 16:53:08,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (1/1) ... [2020-10-28 16:53:08,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (1/1) ... [2020-10-28 16:53:08,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (1/1) ... [2020-10-28 16:53:08,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (1/1) ... [2020-10-28 16:53:08,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:53:08,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:53:08,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:53:08,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:53:08,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (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 16:53:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:53:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:53:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:53:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:53:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:53:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:53:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:53:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:53:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:53:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:53:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:53:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:53:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:53:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:53:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:53:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:53:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:53:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:53:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:53:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:53:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:53:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:53:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:53:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:53:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:53:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:53:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:53:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:53:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:53:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:53:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:53:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:53:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:53:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:53:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:53:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:53:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:53:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:53:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:53:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:53:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:53:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:53:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:53:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:53:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:53:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:53:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:53:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:53:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:53:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:53:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:53:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:53:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:53:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:53:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:53:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:53:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:53:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:53:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:53:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:53:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:53:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:53:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:53:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:53:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:53:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:53:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:53:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:53:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:53:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:53:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:53:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:53:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:53:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:53:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:53:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:53:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:53:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:53:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:53:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:53:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:53:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:53:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:53:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:53:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:53:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:53:09,747 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:53:09,747 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:53:09,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:53:09 BoogieIcfgContainer [2020-10-28 16:53:09,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:53:09,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:53:09,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:53:09,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:53:09,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:53:07" (1/3) ... [2020-10-28 16:53:09,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577552f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:53:09, skipping insertion in model container [2020-10-28 16:53:09,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:08" (2/3) ... [2020-10-28 16:53:09,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577552f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:53:09, skipping insertion in model container [2020-10-28 16:53:09,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:53:09" (3/3) ... [2020-10-28 16:53:09,759 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-10-28 16:53:09,771 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:53:09,777 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:53:09,794 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:53:09,822 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:53:09,822 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:53:09,822 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:53:09,823 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:53:09,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:53:09,823 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:53:09,823 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:53:09,823 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:53:09,845 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-10-28 16:53:09,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:53:09,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:09,855 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 16:53:09,855 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 16:53:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:09,862 INFO L82 PathProgramCache]: Analyzing trace with hash -894639054, now seen corresponding path program 1 times [2020-10-28 16:53:09,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:09,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136497006] [2020-10-28 16:53:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:10,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:10,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:11,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:53:13,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:53:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3049 [2020-10-28 16:53:13,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:53:13,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 16:53:13,612 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:13,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:13,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 16:53:13,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:13,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:13,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:13,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:13,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:13,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:13,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:13,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:53:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:13,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:13,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:53:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:13,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:13,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:53:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:13,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:13,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:13,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:13,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:13,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:13,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:13,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:53:13,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136497006] [2020-10-28 16:53:13,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:13,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:53:13,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762047334] [2020-10-28 16:53:13,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:53:13,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:13,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:53:13,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:53:13,794 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2020-10-28 16:53:14,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:14,891 INFO L93 Difference]: Finished difference Result 236 states and 313 transitions. [2020-10-28 16:53:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:53:14,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:53:14,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:14,907 INFO L225 Difference]: With dead ends: 236 [2020-10-28 16:53:14,907 INFO L226 Difference]: Without dead ends: 127 [2020-10-28 16:53:14,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:53:14,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-28 16:53:14,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 97. [2020-10-28 16:53:14,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-28 16:53:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2020-10-28 16:53:14,997 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 53 [2020-10-28 16:53:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:14,998 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2020-10-28 16:53:14,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:53:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2020-10-28 16:53:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:53:15,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:15,002 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 16:53:15,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:53:15,003 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 16:53:15,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:15,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1476600878, now seen corresponding path program 1 times [2020-10-28 16:53:15,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:15,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599075162] [2020-10-28 16:53:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:15,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:15,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:15,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:53:18,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:53:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3342 [2020-10-28 16:53:18,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:53:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:53:18,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,736 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:18,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:18,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 16:53:18,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:18,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:18,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:18,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:18,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:18,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:18,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:18,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:18,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:18,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:53:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:18,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:18,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:18,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:53:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:18,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:18,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:53:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:18,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:18,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:18,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:18,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:18,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:18,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:18,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:18,897 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 16:53:18,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599075162] [2020-10-28 16:53:18,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:18,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:53:18,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856225143] [2020-10-28 16:53:18,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:53:18,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:18,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:53:18,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:53:18,902 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand 4 states. [2020-10-28 16:53:19,488 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:53:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:20,168 INFO L93 Difference]: Finished difference Result 157 states and 190 transitions. [2020-10-28 16:53:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:53:20,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:53:20,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:20,171 INFO L225 Difference]: With dead ends: 157 [2020-10-28 16:53:20,172 INFO L226 Difference]: Without dead ends: 111 [2020-10-28 16:53:20,173 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 16:53:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-28 16:53:20,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 88. [2020-10-28 16:53:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-28 16:53:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2020-10-28 16:53:20,211 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 54 [2020-10-28 16:53:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:20,211 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2020-10-28 16:53:20,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:53:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2020-10-28 16:53:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 16:53:20,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:20,214 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] [2020-10-28 16:53:20,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:53:20,217 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 16:53:20,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:20,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1185205112, now seen corresponding path program 1 times [2020-10-28 16:53:20,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:20,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513375873] [2020-10-28 16:53:20,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:20,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:20,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 16:53:22,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:53:22,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1792 [2020-10-28 16:53:22,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:53:22,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:22,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 16:53:22,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,413 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:22,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:22,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 16:53:22,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:22,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:22,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:22,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:22,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:22,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:22,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:22,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:22,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:22,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:22,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:22,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:22,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:22,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 16:53:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:22,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:22,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:22,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:22,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:53:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:22,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:22,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:22,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:53:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:22,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:22,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:22,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:22,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:22,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:22,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:22,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:22,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:22,586 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 16:53:22,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513375873] [2020-10-28 16:53:22,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:22,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:53:22,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216322309] [2020-10-28 16:53:22,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:53:22,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:22,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:53:22,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:53:22,589 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand 4 states. [2020-10-28 16:53:23,203 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:24,398 INFO L93 Difference]: Finished difference Result 247 states and 302 transitions. [2020-10-28 16:53:24,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:53:24,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-28 16:53:24,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:24,406 INFO L225 Difference]: With dead ends: 247 [2020-10-28 16:53:24,407 INFO L226 Difference]: Without dead ends: 183 [2020-10-28 16:53:24,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:53:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-28 16:53:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 139. [2020-10-28 16:53:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-28 16:53:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 162 transitions. [2020-10-28 16:53:24,519 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 162 transitions. Word has length 58 [2020-10-28 16:53:24,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:24,520 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 162 transitions. [2020-10-28 16:53:24,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:53:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 162 transitions. [2020-10-28 16:53:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-28 16:53:24,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:24,530 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] [2020-10-28 16:53:24,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:53:24,530 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 16:53:24,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:24,531 INFO L82 PathProgramCache]: Analyzing trace with hash -391273659, now seen corresponding path program 1 times [2020-10-28 16:53:24,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:24,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424239057] [2020-10-28 16:53:24,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:25,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:25,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 16:53:25,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:25,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-10-28 16:53:25,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:25,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:53:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 16:53:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,056 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:26,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:26,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 16:53:26,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:26,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:26,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:26,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:26,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:26,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:26,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:26,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:26,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:26,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:26,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:26,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:26,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:26,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:26,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:53:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:26,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:26,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:26,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 16:53:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:26,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:26,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:26,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 16:53:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:26,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:26,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:53:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:26,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 16:53:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:26,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:26,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:26,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:26,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:26,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:26,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:26,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:26,310 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 16:53:26,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424239057] [2020-10-28 16:53:26,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:26,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:53:26,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563296441] [2020-10-28 16:53:26,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:53:26,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:26,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:53:26,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:53:26,314 INFO L87 Difference]: Start difference. First operand 139 states and 162 transitions. Second operand 7 states. [2020-10-28 16:53:26,842 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:27,875 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:53:28,866 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-28 16:53:29,281 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:53:29,644 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:53:30,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:30,021 INFO L93 Difference]: Finished difference Result 390 states and 484 transitions. [2020-10-28 16:53:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 16:53:30,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-28 16:53:30,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:30,027 INFO L225 Difference]: With dead ends: 390 [2020-10-28 16:53:30,027 INFO L226 Difference]: Without dead ends: 275 [2020-10-28 16:53:30,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:53:30,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-28 16:53:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 252. [2020-10-28 16:53:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-28 16:53:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 298 transitions. [2020-10-28 16:53:30,136 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 298 transitions. Word has length 61 [2020-10-28 16:53:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:30,138 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 298 transitions. [2020-10-28 16:53:30,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:53:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 298 transitions. [2020-10-28 16:53:30,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 16:53:30,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:30,142 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] [2020-10-28 16:53:30,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:53:30,143 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 16:53:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:30,143 INFO L82 PathProgramCache]: Analyzing trace with hash 67416619, now seen corresponding path program 1 times [2020-10-28 16:53:30,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:30,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437528659] [2020-10-28 16:53:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:30,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:30,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:30,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:34,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:34,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 16:53:34,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:53:34,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4672 [2020-10-28 16:53:34,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:34,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:34,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:53:34,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:34,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 16:53:34,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,205 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:35,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:35,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 16:53:35,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:35,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:35,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:35,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:35,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:35,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:35,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:35,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:35,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:35,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 16:53:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:35,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:53:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:35,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 16:53:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:53:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:35,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 16:53:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:35,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 16:53:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:35,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:35,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:35,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:35,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:35,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:35,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:35,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:35,400 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 16:53:35,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437528659] [2020-10-28 16:53:35,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:35,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:53:35,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829345342] [2020-10-28 16:53:35,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:53:35,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:35,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:53:35,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:53:35,403 INFO L87 Difference]: Start difference. First operand 252 states and 298 transitions. Second operand 5 states. [2020-10-28 16:53:35,836 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:36,572 INFO L93 Difference]: Finished difference Result 418 states and 511 transitions. [2020-10-28 16:53:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 16:53:36,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-28 16:53:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:36,575 INFO L225 Difference]: With dead ends: 418 [2020-10-28 16:53:36,575 INFO L226 Difference]: Without dead ends: 231 [2020-10-28 16:53:36,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:53:36,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-28 16:53:36,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 214. [2020-10-28 16:53:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-28 16:53:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 245 transitions. [2020-10-28 16:53:36,632 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 245 transitions. Word has length 65 [2020-10-28 16:53:36,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:36,632 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 245 transitions. [2020-10-28 16:53:36,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:53:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 245 transitions. [2020-10-28 16:53:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 16:53:36,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:36,633 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] [2020-10-28 16:53:36,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:53:36,634 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 16:53:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:36,634 INFO L82 PathProgramCache]: Analyzing trace with hash 387672523, now seen corresponding path program 1 times [2020-10-28 16:53:36,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:36,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328867248] [2020-10-28 16:53:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:53:36,675 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:53:36,675 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:53:36,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:53:36,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:53:36 BoogieIcfgContainer [2020-10-28 16:53:36,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:53:36,709 INFO L168 Benchmark]: Toolchain (without parser) took 29053.37 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 141.5 MB in the beginning and 372.4 MB in the end (delta: -231.0 MB). Peak memory consumption was 106.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:36,709 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 84.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:53:36,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.96 ms. Allocated memory is still 166.7 MB. Free memory was 140.9 MB in the beginning and 121.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:36,714 INFO L168 Benchmark]: Boogie Preprocessor took 107.83 ms. Allocated memory is still 166.7 MB. Free memory was 121.2 MB in the beginning and 117.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:36,715 INFO L168 Benchmark]: RCFGBuilder took 1255.66 ms. Allocated memory is still 166.7 MB. Free memory was 117.4 MB in the beginning and 84.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:36,719 INFO L168 Benchmark]: TraceAbstraction took 26955.12 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 84.2 MB in the beginning and 372.4 MB in the end (delta: -288.2 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:36,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 84.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 716.96 ms. Allocated memory is still 166.7 MB. Free memory was 140.9 MB in the beginning and 121.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.83 ms. Allocated memory is still 166.7 MB. Free memory was 121.2 MB in the beginning and 117.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1255.66 ms. Allocated memory is still 166.7 MB. Free memory was 117.4 MB in the beginning and 84.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26955.12 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 84.2 MB in the beginning and 372.4 MB in the end (delta: -288.2 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L413] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L692] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L765] int retValue_acc ; [L766] int tmp ; [L770] FCALL select_helpers() [L771] FCALL select_features() [L772] CALL, EXPR valid_product() [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L772] RET, EXPR valid_product() [L772] tmp = valid_product() [L774] COND TRUE \read(tmp) [L776] FCALL setup() [L777] CALL runTest() [L759] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L806] COND TRUE waterLevel < 2 [L807] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L138] FCALL processEnvironment() [L144] CALL __utac_acc__Specification3_spec__1() [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L665] CALL, EXPR isMethaneLevelCritical() [L827] int retValue_acc ; [L830] retValue_acc = methaneLevelCritical [L831] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L671] CALL, EXPR getWaterLevel() [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L671] RET, EXPR getWaterLevel() [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L675] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L675] RET, EXPR isPumpRunning() [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) [L681] CALL __automaton_fail() [L652] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product03.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 215 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 422 SDtfs, 515 SDslu, 226 SDs, 0 SdLazy, 860 SolverSat, 291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 137 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 84764 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...