./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-programs/Problem101_label20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-programs/Problem101_label20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29d6a971fe1c57642985ba3a8a9a876e2745ba1ba1e8ec89c36172a2a1c9e3b4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 01:58:10,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 01:58:10,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 01:58:10,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 01:58:10,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 01:58:10,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 01:58:10,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 01:58:10,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 01:58:10,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 01:58:10,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 01:58:10,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 01:58:10,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 01:58:10,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 01:58:10,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 01:58:10,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 01:58:10,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 01:58:10,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 01:58:10,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 01:58:10,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 01:58:10,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 01:58:10,748 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 01:58:10,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 01:58:10,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 01:58:10,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 01:58:10,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 01:58:10,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 01:58:10,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 01:58:10,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 01:58:10,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 01:58:10,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 01:58:10,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 01:58:10,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 01:58:10,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 01:58:10,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 01:58:10,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 01:58:10,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 01:58:10,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 01:58:10,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 01:58:10,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 01:58:10,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 01:58:10,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 01:58:10,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 01:58:10,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 01:58:10,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 01:58:10,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 01:58:10,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 01:58:10,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 01:58:10,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 01:58:10,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 01:58:10,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 01:58:10,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 01:58:10,807 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 01:58:10,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 01:58:10,808 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 01:58:10,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 01:58:10,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 01:58:10,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 01:58:10,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 01:58:10,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 01:58:10,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 01:58:10,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 01:58:10,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 01:58:10,810 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 01:58:10,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 01:58:10,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 01:58:10,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 01:58:10,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 01:58:10,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 01:58:10,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 01:58:10,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 01:58:10,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 01:58:10,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 01:58:10,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 01:58:10,813 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 01:58:10,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 01:58:10,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 01:58:10,814 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d6a971fe1c57642985ba3a8a9a876e2745ba1ba1e8ec89c36172a2a1c9e3b4 [2022-07-12 01:58:11,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 01:58:11,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 01:58:11,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 01:58:11,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 01:58:11,108 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 01:58:11,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label20.c [2022-07-12 01:58:11,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17450e283/d853ce9c280d44f38ae6706f4f0e74ab/FLAG6ec0e9ce1 [2022-07-12 01:58:13,279 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 01:58:13,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label20.c [2022-07-12 01:58:13,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17450e283/d853ce9c280d44f38ae6706f4f0e74ab/FLAG6ec0e9ce1 [2022-07-12 01:58:13,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17450e283/d853ce9c280d44f38ae6706f4f0e74ab [2022-07-12 01:58:13,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 01:58:13,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 01:58:13,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 01:58:13,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 01:58:13,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 01:58:13,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:58:13" (1/1) ... [2022-07-12 01:58:13,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e53c95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:13, skipping insertion in model container [2022-07-12 01:58:13,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:58:13" (1/1) ... [2022-07-12 01:58:13,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 01:58:14,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 01:58:22,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label20.c[2769356,2769369] [2022-07-12 01:58:22,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 01:58:22,136 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 01:58:26,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label20.c[2769356,2769369] [2022-07-12 01:58:26,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 01:58:27,025 INFO L208 MainTranslator]: Completed translation [2022-07-12 01:58:27,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27 WrapperNode [2022-07-12 01:58:27,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 01:58:27,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 01:58:27,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 01:58:27,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 01:58:27,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:27,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:29,899 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83780 [2022-07-12 01:58:29,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 01:58:29,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 01:58:29,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 01:58:29,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 01:58:29,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:29,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:30,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:30,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:31,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:31,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:32,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:32,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 01:58:32,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 01:58:32,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 01:58:32,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 01:58:32,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (1/1) ... [2022-07-12 01:58:32,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 01:58:32,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 01:58:32,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 01:58:32,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 01:58:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 01:58:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 01:58:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 01:58:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 01:58:32,768 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 01:58:32,770 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 01:59:04,873 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 01:59:04,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 01:59:04,935 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 01:59:04,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:59:04 BoogieIcfgContainer [2022-07-12 01:59:04,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 01:59:04,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 01:59:04,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 01:59:04,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 01:59:04,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:58:13" (1/3) ... [2022-07-12 01:59:04,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6e7210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:59:04, skipping insertion in model container [2022-07-12 01:59:04,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:58:27" (2/3) ... [2022-07-12 01:59:04,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6e7210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:59:04, skipping insertion in model container [2022-07-12 01:59:04,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:59:04" (3/3) ... [2022-07-12 01:59:04,954 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem101_label20.c [2022-07-12 01:59:04,966 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 01:59:04,966 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 01:59:05,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 01:59:05,169 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@283cd1a6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6638bb37 [2022-07-12 01:59:05,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 01:59:05,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 01:59:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10104 [2022-07-12 01:59:06,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 01:59:06,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 01:59:06,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 01:59:06,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 01:59:06,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1554709503, now seen corresponding path program 1 times [2022-07-12 01:59:06,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 01:59:06,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873097533] [2022-07-12 01:59:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 01:59:06,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 01:59:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat