/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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:53:11,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:53:11,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:53:11,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:53:11,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:53:11,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:53:11,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:53:11,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:53:11,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:53:11,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:53:11,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:53:11,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:53:11,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:53:11,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:53:11,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:53:11,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:53:11,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:53:11,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:53:11,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:53:11,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:53:11,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:53:11,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:53:11,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:53:11,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:53:11,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:53:11,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:53:11,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:53:11,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:53:11,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:53:11,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:53:11,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:53:11,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:53:11,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:53:11,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:53:11,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:53:11,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:53:11,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:53:11,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:53:11,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:53:11,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:53:11,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:53:11,553 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 16:53:11,580 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:53:11,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:53:11,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:53:11,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:53:11,583 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:53:11,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:53:11,583 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:53:11,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:53:11,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:53:11,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:53:11,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:53:11,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:53:11,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:53:11,585 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:53:11,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:53:11,586 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:53:11,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:53:11,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:53:11,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:53:11,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:53:11,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:53:11,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:53:11,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:53:11,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:53:11,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:53:11,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:53:11,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:53:11,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:53:11,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:53:11,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:53:11,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:53:11,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:53:11,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:53:11,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:53:11,987 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:53:11,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-10-28 16:53:12,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed7ee9780/b4e1b965f0df435ab10982c0cb648170/FLAG54883f644 [2020-10-28 16:53:12,705 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:53:12,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-10-28 16:53:12,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed7ee9780/b4e1b965f0df435ab10982c0cb648170/FLAG54883f644 [2020-10-28 16:53:13,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed7ee9780/b4e1b965f0df435ab10982c0cb648170 [2020-10-28 16:53:13,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:53:13,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:53:13,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:53:13,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:53:13,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:53:13,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9d2d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13, skipping insertion in model container [2020-10-28 16:53:13,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:53:13,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:53:13,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:53:13,428 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:53:13,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:53:13,618 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:53:13,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13 WrapperNode [2020-10-28 16:53:13,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:53:13,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:53:13,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:53:13,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:53:13,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (1/1) ... [2020-10-28 16:53:13,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:53:13,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:53:13,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:53:13,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:53:13,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (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 16:53:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:53:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:53:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:53:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:53:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:53:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:53:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:53:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:53:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:53:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:53:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:53:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:53:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:53:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:53:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:53:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:53:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:53:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:53:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:53:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:53:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:53:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:53:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:53:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:53:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:53:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:53:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:53:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:53:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:53:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:53:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:53:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:53:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:53:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:53:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:53:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:53:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:53:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:53:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:53:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:53:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:53:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:53:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:53:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:53:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:53:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:53:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:53:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:53:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:53:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:53:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:53:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:53:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:53:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:53:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:53:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:53:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:53:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:53:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:53:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:53:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:53:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:53:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:53:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:53:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:53:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:53:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:53:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:53:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:53:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:53:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:53:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:53:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:53:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:53:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:53:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:53:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:53:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:53:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:53:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:53:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:53:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:53:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:53:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:53:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:53:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:53:15,509 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:53:15,509 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:53:15,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:53:15 BoogieIcfgContainer [2020-10-28 16:53:15,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:53:15,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:53:15,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:53:15,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:53:15,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:53:13" (1/3) ... [2020-10-28 16:53:15,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b0f44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:53:15, skipping insertion in model container [2020-10-28 16:53:15,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:53:13" (2/3) ... [2020-10-28 16:53:15,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b0f44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:53:15, skipping insertion in model container [2020-10-28 16:53:15,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:53:15" (3/3) ... [2020-10-28 16:53:15,521 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-10-28 16:53:15,533 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:53:15,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:53:15,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:53:15,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:53:15,580 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:53:15,580 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:53:15,580 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:53:15,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:53:15,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:53:15,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:53:15,581 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:53:15,602 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-10-28 16:53:15,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:53:15,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:15,613 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 16:53:15,613 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 16:53:15,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:15,620 INFO L82 PathProgramCache]: Analyzing trace with hash -834771578, now seen corresponding path program 1 times [2020-10-28 16:53:15,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:15,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191366572] [2020-10-28 16:53:15,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:53:19,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:53:19,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3077 [2020-10-28 16:53:19,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:53:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-28 16:53:19,455 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:19,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:19,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 16:53:19,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:19,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:19,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:19,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:19,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:19,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:19,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:19,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:19,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:19,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:53:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:19,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:19,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:19,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:53:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:19,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:19,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:53:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:19,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:19,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:19,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:19,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:19,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:19,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:19,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:19,649 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 16:53:19,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191366572] [2020-10-28 16:53:19,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:19,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:53:19,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557453121] [2020-10-28 16:53:19,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:53:19,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:19,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:53:19,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:53:19,676 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-10-28 16:53:20,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:20,828 INFO L93 Difference]: Finished difference Result 254 states and 337 transitions. [2020-10-28 16:53:20,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:53:20,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:53:20,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:20,851 INFO L225 Difference]: With dead ends: 254 [2020-10-28 16:53:20,851 INFO L226 Difference]: Without dead ends: 136 [2020-10-28 16:53:20,858 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 16:53:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-28 16:53:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 106. [2020-10-28 16:53:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-28 16:53:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2020-10-28 16:53:20,948 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 53 [2020-10-28 16:53:20,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:20,949 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2020-10-28 16:53:20,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:53:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2020-10-28 16:53:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:53:20,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:20,953 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 16:53:20,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:53:20,953 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 16:53:20,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:20,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1713527991, now seen corresponding path program 1 times [2020-10-28 16:53:20,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:20,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004824690] [2020-10-28 16:53:20,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:21,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:21,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:23,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:23,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:53:23,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:53:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2521 [2020-10-28 16:53:23,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:23,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 16:53:23,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:23,936 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:23,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:23,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:24,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 16:53:24,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:24,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:24,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:24,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:24,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:24,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:24,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:24,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:24,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:24,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:24,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:53:24,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:24,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:24,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 16:53:24,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:24,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:24,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:24,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:24,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:24,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:24,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:53:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:24,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:24,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:24,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:53:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:24,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:24,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:24,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:24,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:24,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:53:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:24,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:24,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:24,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:24,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:24,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:24,192 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 16:53:24,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004824690] [2020-10-28 16:53:24,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:24,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:53:24,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646870665] [2020-10-28 16:53:24,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:53:24,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:24,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:53:24,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:53:24,198 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand 4 states. [2020-10-28 16:53:24,659 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:25,827 INFO L93 Difference]: Finished difference Result 218 states and 277 transitions. [2020-10-28 16:53:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:53:25,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:53:25,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:25,834 INFO L225 Difference]: With dead ends: 218 [2020-10-28 16:53:25,835 INFO L226 Difference]: Without dead ends: 136 [2020-10-28 16:53:25,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:53:25,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-28 16:53:25,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 106. [2020-10-28 16:53:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-28 16:53:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-10-28 16:53:25,929 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 54 [2020-10-28 16:53:25,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:25,929 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-10-28 16:53:25,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:53:25,930 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-10-28 16:53:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 16:53:25,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:25,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:53:25,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:53:25,943 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 16:53:25,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:25,944 INFO L82 PathProgramCache]: Analyzing trace with hash 784251944, now seen corresponding path program 1 times [2020-10-28 16:53:25,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:25,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247070742] [2020-10-28 16:53:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:26,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 16:53:27,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1079 [2020-10-28 16:53:27,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:53:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 16:53:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:27,613 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:27,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 16:53:27,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:27,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:53:27,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:27,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:27,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:27,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:27,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:27,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:27,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:27,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:27,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:27,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:27,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:53:27,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:27,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:53:27,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:27,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:27,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:27,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:27,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:27,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:53:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 16:53:27,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:27,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 16:53:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:53:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:27,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:27,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:27,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:27,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:53:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:27,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:27,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:27,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:27,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 16:53:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:27,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:53:27,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:53:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:27,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:27,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 16:53:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:27,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:27,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:27,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:27,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:27,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:27,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:27,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:27,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:27,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:27,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 16:53:27,898 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 16:53:27,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247070742] [2020-10-28 16:53:27,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:27,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:53:27,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374266444] [2020-10-28 16:53:27,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:53:27,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:27,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:53:27,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:53:27,902 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-10-28 16:53:28,466 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:29,621 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:53:30,875 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 206 [2020-10-28 16:53:31,282 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:53:31,778 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:53:32,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:32,736 INFO L93 Difference]: Finished difference Result 338 states and 462 transitions. [2020-10-28 16:53:32,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:53:32,738 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-28 16:53:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:32,747 INFO L225 Difference]: With dead ends: 338 [2020-10-28 16:53:32,748 INFO L226 Difference]: Without dead ends: 256 [2020-10-28 16:53:32,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:53:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-28 16:53:32,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 187. [2020-10-28 16:53:32,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-28 16:53:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 226 transitions. [2020-10-28 16:53:32,858 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 226 transitions. Word has length 66 [2020-10-28 16:53:32,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:32,858 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 226 transitions. [2020-10-28 16:53:32,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:53:32,858 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 226 transitions. [2020-10-28 16:53:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 16:53:32,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:32,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:53:32,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:53:32,863 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 16:53:32,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:32,864 INFO L82 PathProgramCache]: Analyzing trace with hash -825292606, now seen corresponding path program 1 times [2020-10-28 16:53:32,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:32,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970201258] [2020-10-28 16:53:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:32,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:33,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:33,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:35,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:37,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:37,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-28 16:53:37,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:53:37,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 16:53:37,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:37,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:53:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 16:53:37,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 16:53:37,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:53:38,314 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:53:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:53:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:38,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 16:53:38,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:53:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:38,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:38,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:53:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:38,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:53:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:38,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:53:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:38,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:38,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 16:53:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:38,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:38,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:53:38,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:53:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 16:53:38,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:53:38,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:53:38,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 16:53:38,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:53:38,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:53:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:53:38,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:53:38,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:53:38,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:53:38,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:53:38,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:53:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:38,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:38,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 16:53:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:38,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:38,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 16:53:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:53:38,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:53:38,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:53:38,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:53:38,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:53:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:53:38,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:53:38,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:53:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:53:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:53:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:53:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:53:38,532 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 16:53:38,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970201258] [2020-10-28 16:53:38,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:53:38,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:53:38,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736544284] [2020-10-28 16:53:38,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:53:38,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:53:38,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:53:38,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:53:38,535 INFO L87 Difference]: Start difference. First operand 187 states and 226 transitions. Second operand 7 states. [2020-10-28 16:53:39,311 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:53:39,665 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:53:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:53:42,639 INFO L93 Difference]: Finished difference Result 547 states and 774 transitions. [2020-10-28 16:53:42,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 16:53:42,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-28 16:53:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:53:42,648 INFO L225 Difference]: With dead ends: 547 [2020-10-28 16:53:42,648 INFO L226 Difference]: Without dead ends: 374 [2020-10-28 16:53:42,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:53:42,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-10-28 16:53:42,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 309. [2020-10-28 16:53:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-10-28 16:53:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 398 transitions. [2020-10-28 16:53:42,745 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 398 transitions. Word has length 70 [2020-10-28 16:53:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:53:42,745 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 398 transitions. [2020-10-28 16:53:42,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:53:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 398 transitions. [2020-10-28 16:53:42,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 16:53:42,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:53:42,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:53:42,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:53:42,748 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 16:53:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:53:42,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1964647198, now seen corresponding path program 1 times [2020-10-28 16:53:42,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:53:42,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190340569] [2020-10-28 16:53:42,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:53:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:53:42,799 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:53:42,799 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:53:42,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:53:42,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:53:42 BoogieIcfgContainer [2020-10-28 16:53:42,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:53:42,828 INFO L168 Benchmark]: Toolchain (without parser) took 29806.75 ms. Allocated memory was 151.0 MB in the beginning and 490.7 MB in the end (delta: 339.7 MB). Free memory was 125.7 MB in the beginning and 233.8 MB in the end (delta: -108.1 MB). Peak memory consumption was 232.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:42,828 INFO L168 Benchmark]: CDTParser took 1.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:53:42,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.52 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 105.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:42,830 INFO L168 Benchmark]: Boogie Preprocessor took 85.43 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:42,831 INFO L168 Benchmark]: RCFGBuilder took 1805.91 ms. Allocated memory is still 151.0 MB. Free memory was 101.3 MB in the beginning and 72.9 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:42,832 INFO L168 Benchmark]: TraceAbstraction took 27312.30 ms. Allocated memory was 151.0 MB in the beginning and 490.7 MB in the end (delta: 339.7 MB). Free memory was 72.4 MB in the beginning and 233.8 MB in the end (delta: -161.5 MB). Peak memory consumption was 179.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:53:42,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 589.52 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 105.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 85.43 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1805.91 ms. Allocated memory is still 151.0 MB. Free memory was 101.3 MB in the beginning and 72.9 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 27312.30 ms. Allocated memory was 151.0 MB in the beginning and 490.7 MB in the end (delta: 339.7 MB). Free memory was 72.4 MB in the beginning and 233.8 MB in the end (delta: -161.5 MB). Peak memory consumption was 179.3 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: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L564] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L372] int retValue_acc ; [L373] int tmp ; [L377] FCALL select_helpers() [L378] FCALL select_features() [L379] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L379] RET, EXPR valid_product() [L379] tmp = valid_product() [L381] COND TRUE \read(tmp) [L383] FCALL setup() [L384] CALL runTest() [L366] CALL test() [L235] int splverifierCounter ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L242] splverifierCounter = 0 [L244] COND TRUE 1 [L246] COND TRUE splverifierCounter < 4 [L252] tmp = __VERIFIER_nondet_int() [L254] COND TRUE \read(tmp) [L256] CALL waterRise() [L780] COND TRUE waterLevel < 2 [L781] waterLevel = waterLevel + 1 [L256] RET waterRise() [L262] tmp___0 = __VERIFIER_nondet_int() [L264] COND FALSE !(\read(tmp___0)) [L272] tmp___2 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___2) [L287] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND FALSE !(\read(pumpRunning)) [L152] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L849] CALL, EXPR isMethaneLevelCritical() [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L849] RET, EXPR isMethaneLevelCritical() [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L855] CALL, EXPR getWaterLevel() [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L855] RET, EXPR getWaterLevel() [L855] tmp___0 = getWaterLevel() [L857] COND TRUE tmp___0 == 2 [L859] CALL, EXPR isPumpRunning() [L186] int retValue_acc ; [L189] retValue_acc = pumpRunning [L190] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] tmp___1 = isPumpRunning() [L861] COND FALSE !(\read(tmp___1)) [L865] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product05.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 219 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 527 SDtfs, 801 SDslu, 378 SDs, 0 SdLazy, 1574 SolverSat, 558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=309occurred 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, 4 MinimizatonAttempts, 194 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.3s InterpolantComputationTime, 313 NumberOfCodeBlocks, 313 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 71437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...