./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/weaver/parallel-bluetooth.wvr.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 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:07:24,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:07:24,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:07:24,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:07:24,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:07:24,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:07:24,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:07:24,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:07:24,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:07:24,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:07:24,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:07:24,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:07:24,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:07:24,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:07:24,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:07:24,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:07:24,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:07:24,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:07:24,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:07:24,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:07:24,874 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:07:24,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:07:24,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:07:24,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:07:24,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:07:24,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:07:24,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:07:24,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:07:24,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:07:24,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:07:24,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:07:24,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:07:24,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:07:24,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:07:24,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:07:24,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:07:24,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:07:24,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:07:24,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:07:24,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:07:24,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:07:24,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:07:24,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 22:07:24,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:07:24,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:07:24,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:07:24,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:07:24,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:07:24,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:07:24,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:07:24,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:07:24,918 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:07:24,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:07:24,919 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 22:07:24,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:07:24,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 22:07:24,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:07:24,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:07:24,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:07:24,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:07:24,920 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 22:07:24,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:07:24,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:07:24,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:07:24,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:07:24,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:07:24,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:07:24,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:07:24,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:07:24,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:07:24,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:07:24,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:07:24,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:07:24,922 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:07:24,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:07:24,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:07:24,922 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e [2022-07-13 22:07:25,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:07:25,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:07:25,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:07:25,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:07:25,087 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:07:25,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-07-13 22:07:25,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf2e653d/16ccbb62b8fc44aa8a84ee4f0055ed72/FLAG4e910546a [2022-07-13 22:07:25,475 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:07:25,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-07-13 22:07:25,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf2e653d/16ccbb62b8fc44aa8a84ee4f0055ed72/FLAG4e910546a [2022-07-13 22:07:25,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf2e653d/16ccbb62b8fc44aa8a84ee4f0055ed72 [2022-07-13 22:07:25,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:07:25,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:07:25,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:07:25,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:07:25,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:07:25,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:07:25" (1/1) ... [2022-07-13 22:07:25,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a8e879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:25, skipping insertion in model container [2022-07-13 22:07:25,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:07:25" (1/1) ... [2022-07-13 22:07:25,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:07:25,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:07:26,074 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/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-07-13 22:07:26,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:07:26,082 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:07:26,097 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/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-07-13 22:07:26,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:07:26,106 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:07:26,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26 WrapperNode [2022-07-13 22:07:26,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:07:26,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:07:26,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:07:26,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:07:26,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,132 INFO L137 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2022-07-13 22:07:26,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:07:26,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:07:26,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:07:26,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:07:26,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:07:26,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:07:26,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:07:26,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:07:26,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (1/1) ... [2022-07-13 22:07:26,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:07:26,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:07:26,196 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) [2022-07-13 22:07:26,203 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 [2022-07-13 22:07:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:07:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-13 22:07:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-13 22:07:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-13 22:07:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-13 22:07:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:07:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:07:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:07:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-13 22:07:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-13 22:07:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:07:26,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:07:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:07:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:07:26,232 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 22:07:26,291 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:07:26,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:07:26,494 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:07:26,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:07:26,540 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 22:07:26,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:07:26 BoogieIcfgContainer [2022-07-13 22:07:26,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:07:26,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:07:26,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:07:26,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:07:26,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:07:25" (1/3) ... [2022-07-13 22:07:26,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff48a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:07:26, skipping insertion in model container [2022-07-13 22:07:26,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:26" (2/3) ... [2022-07-13 22:07:26,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff48a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:07:26, skipping insertion in model container [2022-07-13 22:07:26,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:07:26" (3/3) ... [2022-07-13 22:07:26,551 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-07-13 22:07:26,555 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 22:07:26,561 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:07:26,562 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 22:07:26,562 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 22:07:26,594 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 22:07:26,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 139 transitions, 294 flow [2022-07-13 22:07:26,679 INFO L129 PetriNetUnfolder]: 9/137 cut-off events. [2022-07-13 22:07:26,679 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 22:07:26,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 9/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-07-13 22:07:26,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 139 transitions, 294 flow [2022-07-13 22:07:26,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 128 transitions, 268 flow [2022-07-13 22:07:26,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:07:26,710 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@3fc98cb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3d3a589b [2022-07-13 22:07:26,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-13 22:07:26,744 INFO L129 PetriNetUnfolder]: 9/127 cut-off events. [2022-07-13 22:07:26,745 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 22:07:26,745 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:26,745 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-13 22:07:26,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 22:07:26,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:26,751 INFO L85 PathProgramCache]: Analyzing trace with hash -832133839, now seen corresponding path program 1 times [2022-07-13 22:07:26,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:26,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966292930] [2022-07-13 22:07:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:26,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:27,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:27,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966292930] [2022-07-13 22:07:27,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966292930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:07:27,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:07:27,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:07:27,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919215738] [2022-07-13 22:07:27,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:27,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:07:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:07:27,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:07:27,166 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 139 [2022-07-13 22:07:27,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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) [2022-07-13 22:07:27,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:27,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 139 [2022-07-13 22:07:27,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:27,313 INFO L129 PetriNetUnfolder]: 29/235 cut-off events. [2022-07-13 22:07:27,313 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-07-13 22:07:27,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 235 events. 29/235 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 590 event pairs, 4 based on Foata normal form. 8/221 useless extension candidates. Maximal degree in co-relation 179. Up to 38 conditions per place. [2022-07-13 22:07:27,316 INFO L132 encePairwiseOnDemand]: 120/139 looper letters, 43 selfloop transitions, 1 changer transitions 18/134 dead transitions. [2022-07-13 22:07:27,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 134 transitions, 413 flow [2022-07-13 22:07:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:07:27,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-13 22:07:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 727 transitions. [2022-07-13 22:07:27,328 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6537769784172662 [2022-07-13 22:07:27,329 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 727 transitions. [2022-07-13 22:07:27,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 727 transitions. [2022-07-13 22:07:27,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:27,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 727 transitions. [2022-07-13 22:07:27,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 90.875) internal successors, (727), 8 states have internal predecessors, (727), 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) [2022-07-13 22:07:27,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 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) [2022-07-13 22:07:27,343 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 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) [2022-07-13 22:07:27,345 INFO L186 Difference]: Start difference. First operand has 126 places, 128 transitions, 268 flow. Second operand 8 states and 727 transitions. [2022-07-13 22:07:27,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 134 transitions, 413 flow [2022-07-13 22:07:27,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 134 transitions, 399 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-13 22:07:27,351 INFO L242 Difference]: Finished difference. Result has 133 places, 114 transitions, 243 flow [2022-07-13 22:07:27,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=243, PETRI_PLACES=133, PETRI_TRANSITIONS=114} [2022-07-13 22:07:27,355 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 7 predicate places. [2022-07-13 22:07:27,356 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 114 transitions, 243 flow [2022-07-13 22:07:27,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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) [2022-07-13 22:07:27,356 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:27,356 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-13 22:07:27,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:07:27,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 22:07:27,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2030228587, now seen corresponding path program 2 times [2022-07-13 22:07:27,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:27,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134273672] [2022-07-13 22:07:27,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:27,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:27,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:27,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134273672] [2022-07-13 22:07:27,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134273672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:07:27,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:07:27,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:07:27,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799894099] [2022-07-13 22:07:27,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:27,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:07:27,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:27,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:07:27,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:07:27,513 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 139 [2022-07-13 22:07:27,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 114 transitions, 243 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2022-07-13 22:07:27,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:27,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 139 [2022-07-13 22:07:27,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:27,604 INFO L129 PetriNetUnfolder]: 22/206 cut-off events. [2022-07-13 22:07:27,605 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-07-13 22:07:27,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 206 events. 22/206 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 499 event pairs, 6 based on Foata normal form. 4/198 useless extension candidates. Maximal degree in co-relation 298. Up to 52 conditions per place. [2022-07-13 22:07:27,607 INFO L132 encePairwiseOnDemand]: 131/139 looper letters, 41 selfloop transitions, 7 changer transitions 0/121 dead transitions. [2022-07-13 22:07:27,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 121 transitions, 355 flow [2022-07-13 22:07:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:07:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-13 22:07:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2022-07-13 22:07:27,609 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6676258992805756 [2022-07-13 22:07:27,609 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2022-07-13 22:07:27,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2022-07-13 22:07:27,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:27,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2022-07-13 22:07:27,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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) [2022-07-13 22:07:27,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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) [2022-07-13 22:07:27,612 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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) [2022-07-13 22:07:27,612 INFO L186 Difference]: Start difference. First operand has 133 places, 114 transitions, 243 flow. Second operand 5 states and 464 transitions. [2022-07-13 22:07:27,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 121 transitions, 355 flow [2022-07-13 22:07:27,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 121 transitions, 348 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-07-13 22:07:27,616 INFO L242 Difference]: Finished difference. Result has 122 places, 116 transitions, 265 flow [2022-07-13 22:07:27,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=265, PETRI_PLACES=122, PETRI_TRANSITIONS=116} [2022-07-13 22:07:27,617 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, -4 predicate places. [2022-07-13 22:07:27,617 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 116 transitions, 265 flow [2022-07-13 22:07:27,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2022-07-13 22:07:27,618 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:27,618 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-13 22:07:27,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 22:07:27,618 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 22:07:27,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:27,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1429576370, now seen corresponding path program 1 times [2022-07-13 22:07:27,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:27,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013987570] [2022-07-13 22:07:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:27,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:27,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:27,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013987570] [2022-07-13 22:07:27,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013987570] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:07:27,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:07:27,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 22:07:27,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044582647] [2022-07-13 22:07:27,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:27,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 22:07:27,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:27,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 22:07:27,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:07:27,847 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-07-13 22:07:27,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 116 transitions, 265 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 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) [2022-07-13 22:07:27,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:27,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-07-13 22:07:27,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:28,015 INFO L129 PetriNetUnfolder]: 38/270 cut-off events. [2022-07-13 22:07:28,016 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-07-13 22:07:28,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 270 events. 38/270 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 908 event pairs, 4 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 209. Up to 42 conditions per place. [2022-07-13 22:07:28,018 INFO L132 encePairwiseOnDemand]: 123/139 looper letters, 52 selfloop transitions, 18 changer transitions 1/141 dead transitions. [2022-07-13 22:07:28,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 141 transitions, 471 flow [2022-07-13 22:07:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 22:07:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-13 22:07:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1086 transitions. [2022-07-13 22:07:28,021 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6009961261759823 [2022-07-13 22:07:28,021 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1086 transitions. [2022-07-13 22:07:28,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1086 transitions. [2022-07-13 22:07:28,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:28,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1086 transitions. [2022-07-13 22:07:28,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 83.53846153846153) internal successors, (1086), 13 states have internal predecessors, (1086), 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) [2022-07-13 22:07:28,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-13 22:07:28,029 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 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) [2022-07-13 22:07:28,029 INFO L186 Difference]: Start difference. First operand has 122 places, 116 transitions, 265 flow. Second operand 13 states and 1086 transitions. [2022-07-13 22:07:28,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 141 transitions, 471 flow [2022-07-13 22:07:28,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 141 transitions, 462 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-13 22:07:28,033 INFO L242 Difference]: Finished difference. Result has 134 places, 121 transitions, 314 flow [2022-07-13 22:07:28,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=314, PETRI_PLACES=134, PETRI_TRANSITIONS=121} [2022-07-13 22:07:28,035 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2022-07-13 22:07:28,036 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 121 transitions, 314 flow [2022-07-13 22:07:28,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 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) [2022-07-13 22:07:28,036 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:28,036 INFO L200 CegarLoopForPetriNet]: 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] [2022-07-13 22:07:28,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 22:07:28,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 22:07:28,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1225799267, now seen corresponding path program 1 times [2022-07-13 22:07:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:28,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88433777] [2022-07-13 22:07:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:28,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:28,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88433777] [2022-07-13 22:07:28,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88433777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:07:28,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:07:28,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:07:28,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535187398] [2022-07-13 22:07:28,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:28,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:07:28,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:28,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:07:28,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:07:28,212 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 139 [2022-07-13 22:07:28,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 121 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 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) [2022-07-13 22:07:28,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:28,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 139 [2022-07-13 22:07:28,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:28,311 INFO L129 PetriNetUnfolder]: 20/203 cut-off events. [2022-07-13 22:07:28,312 INFO L130 PetriNetUnfolder]: For 40/45 co-relation queries the response was YES. [2022-07-13 22:07:28,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 203 events. 20/203 cut-off events. For 40/45 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 498 event pairs, 7 based on Foata normal form. 2/194 useless extension candidates. Maximal degree in co-relation 245. Up to 37 conditions per place. [2022-07-13 22:07:28,312 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 0 selfloop transitions, 0 changer transitions 121/121 dead transitions. [2022-07-13 22:07:28,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 121 transitions, 415 flow [2022-07-13 22:07:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:07:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-13 22:07:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 783 transitions. [2022-07-13 22:07:28,314 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6258992805755396 [2022-07-13 22:07:28,315 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 783 transitions. [2022-07-13 22:07:28,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 783 transitions. [2022-07-13 22:07:28,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:28,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 783 transitions. [2022-07-13 22:07:28,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 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) [2022-07-13 22:07:28,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-07-13 22:07:28,323 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 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) [2022-07-13 22:07:28,323 INFO L186 Difference]: Start difference. First operand has 134 places, 121 transitions, 314 flow. Second operand 9 states and 783 transitions. [2022-07-13 22:07:28,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 121 transitions, 415 flow [2022-07-13 22:07:28,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 121 transitions, 398 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-07-13 22:07:28,327 INFO L242 Difference]: Finished difference. Result has 132 places, 0 transitions, 0 flow [2022-07-13 22:07:28,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=132, PETRI_TRANSITIONS=0} [2022-07-13 22:07:28,328 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2022-07-13 22:07:28,329 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 0 transitions, 0 flow [2022-07-13 22:07:28,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 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) [2022-07-13 22:07:28,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-13 22:07:28,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-07-13 22:07:28,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-07-13 22:07:28,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 22:07:28,335 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-07-13 22:07:28,337 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 22:07:28,337 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 22:07:28,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 10:07:28 BasicIcfg [2022-07-13 22:07:28,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 22:07:28,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 22:07:28,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 22:07:28,342 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 22:07:28,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:07:26" (3/4) ... [2022-07-13 22:07:28,345 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 22:07:28,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-07-13 22:07:28,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-07-13 22:07:28,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-13 22:07:28,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-13 22:07:28,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 22:07:28,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 22:07:28,389 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 22:07:28,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 22:07:28,390 INFO L158 Benchmark]: Toolchain (without parser) took 2480.72ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 80.4MB in the beginning and 61.0MB in the end (delta: 19.4MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-07-13 22:07:28,390 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:07:28,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.46ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 84.4MB in the end (delta: -4.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 22:07:28,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.19ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 22:07:28,391 INFO L158 Benchmark]: Boogie Preprocessor took 24.79ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:07:28,391 INFO L158 Benchmark]: RCFGBuilder took 383.75ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 65.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 22:07:28,392 INFO L158 Benchmark]: TraceAbstraction took 1798.43ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 64.7MB in the beginning and 64.1MB in the end (delta: 631.9kB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-07-13 22:07:28,392 INFO L158 Benchmark]: Witness Printer took 47.33ms. Allocated memory is still 138.4MB. Free memory was 64.1MB in the beginning and 61.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 22:07:28,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.46ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 84.4MB in the end (delta: -4.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.19ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 82.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.79ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 383.75ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 65.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1798.43ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 64.7MB in the beginning and 64.1MB in the end (delta: 631.9kB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Witness Printer took 47.33ms. Allocated memory is still 138.4MB. Free memory was 64.1MB in the beginning and 61.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 152 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 256 mSDsluCounter, 366 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 417 IncrementalHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 130 mSDtfsCounter, 417 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 1725 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-13 22:07:28,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE