./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 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:24:52,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:24:52,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:24:52,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:24:52,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:24:52,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:24:52,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:24:52,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:24:52,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:24:52,685 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:24:52,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:24:52,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:24:52,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:24:52,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:24:52,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:24:52,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:24:52,687 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 [2024-11-07 11:24:52,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:24:52,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:24:52,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:24:52,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:24:52,928 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:24:52,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-07 11:24:54,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:24:54,657 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:24:54,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-07 11:24:54,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72fd3d32d/a2478377c6244ab2b2e309d6b0d4e8ed/FLAGcd07ea4f0 [2024-11-07 11:24:55,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72fd3d32d/a2478377c6244ab2b2e309d6b0d4e8ed [2024-11-07 11:24:55,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:24:55,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:24:55,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:24:55,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:24:55,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:24:55,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3e64fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55, skipping insertion in model container [2024-11-07 11:24:55,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:24:55,176 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2491,2504] [2024-11-07 11:24:55,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:24:55,190 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:24:55,203 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2491,2504] [2024-11-07 11:24:55,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:24:55,217 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:24:55,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55 WrapperNode [2024-11-07 11:24:55,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:24:55,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:24:55,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:24:55,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:24:55,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,248 INFO L138 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 113 [2024-11-07 11:24:55,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:24:55,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:24:55,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:24:55,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:24:55,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,265 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 11:24:55,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:24:55,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:24:55,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:24:55,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:24:55,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (1/1) ... [2024-11-07 11:24:55,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:24:55,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:24:55,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 11:24:55,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 11:24:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:24:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 11:24:55,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 11:24:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 11:24:55,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 11:24:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:24:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:24:55,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:24:55,343 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 11:24:55,403 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:24:55,405 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:24:55,631 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:24:55,632 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:24:55,775 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:24:55,775 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:24:55,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:24:55 BoogieIcfgContainer [2024-11-07 11:24:55,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:24:55,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:24:55,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:24:55,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:24:55,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:24:55" (1/3) ... [2024-11-07 11:24:55,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b164e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:24:55, skipping insertion in model container [2024-11-07 11:24:55,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:24:55" (2/3) ... [2024-11-07 11:24:55,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b164e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:24:55, skipping insertion in model container [2024-11-07 11:24:55,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:24:55" (3/3) ... [2024-11-07 11:24:55,785 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2024-11-07 11:24:55,797 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:24:55,797 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:24:55,797 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:24:55,843 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 11:24:55,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 47 transitions, 108 flow [2024-11-07 11:24:55,897 INFO L124 PetriNetUnfolderBase]: 3/45 cut-off events. [2024-11-07 11:24:55,899 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 11:24:55,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 45 events. 3/45 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-11-07 11:24:55,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 47 transitions, 108 flow [2024-11-07 11:24:55,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 44 transitions, 100 flow [2024-11-07 11:24:55,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:24:55,947 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3df02aef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:24:55,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-07 11:24:55,992 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:24:55,993 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-11-07 11:24:55,993 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 11:24:55,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:55,993 INFO L204 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] [2024-11-07 11:24:55,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:56,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:56,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2077819709, now seen corresponding path program 1 times [2024-11-07 11:24:56,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:56,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26037607] [2024-11-07 11:24:56,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:56,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:56,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:56,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:56,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26037607] [2024-11-07 11:24:56,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26037607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:56,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:56,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:24:56,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991147317] [2024-11-07 11:24:56,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:56,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 11:24:56,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:56,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 11:24:56,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 11:24:56,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-07 11:24:56,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-07 11:24:56,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:56,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-07 11:24:56,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:56,727 INFO L124 PetriNetUnfolderBase]: 138/299 cut-off events. [2024-11-07 11:24:56,728 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-07 11:24:56,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 299 events. 138/299 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1220 event pairs, 45 based on Foata normal form. 5/273 useless extension candidates. Maximal degree in co-relation 497. Up to 155 conditions per place. [2024-11-07 11:24:56,732 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 32 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-11-07 11:24:56,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 204 flow [2024-11-07 11:24:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 11:24:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 11:24:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-07 11:24:56,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7163120567375887 [2024-11-07 11:24:56,746 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 100 flow. Second operand 3 states and 101 transitions. [2024-11-07 11:24:56,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 204 flow [2024-11-07 11:24:56,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 11:24:56,754 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 117 flow [2024-11-07 11:24:56,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2024-11-07 11:24:56,759 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-11-07 11:24:56,760 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 117 flow [2024-11-07 11:24:56,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-07 11:24:56,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:56,761 INFO L204 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] [2024-11-07 11:24:56,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:24:56,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:56,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:56,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1453387417, now seen corresponding path program 1 times [2024-11-07 11:24:56,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812381840] [2024-11-07 11:24:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:56,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:56,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812381840] [2024-11-07 11:24:56,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812381840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:56,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:56,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:24:56,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045513134] [2024-11-07 11:24:56,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:56,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 11:24:56,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:56,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 11:24:56,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 11:24:56,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 11:24:56,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-07 11:24:56,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:56,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 11:24:56,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:57,035 INFO L124 PetriNetUnfolderBase]: 225/495 cut-off events. [2024-11-07 11:24:57,035 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-07 11:24:57,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 495 events. 225/495 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2354 event pairs, 98 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 469. Up to 257 conditions per place. [2024-11-07 11:24:57,041 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 35 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2024-11-07 11:24:57,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 240 flow [2024-11-07 11:24:57,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 11:24:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 11:24:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-07 11:24:57,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-07 11:24:57,042 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 117 flow. Second operand 3 states and 102 transitions. [2024-11-07 11:24:57,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 240 flow [2024-11-07 11:24:57,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 62 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 11:24:57,044 INFO L231 Difference]: Finished difference. Result has 50 places, 52 transitions, 172 flow [2024-11-07 11:24:57,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2024-11-07 11:24:57,044 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2024-11-07 11:24:57,044 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 172 flow [2024-11-07 11:24:57,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-07 11:24:57,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:57,045 INFO L204 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] [2024-11-07 11:24:57,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:24:57,045 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:57,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash 841271509, now seen corresponding path program 2 times [2024-11-07 11:24:57,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:57,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395715110] [2024-11-07 11:24:57,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:57,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:57,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:57,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395715110] [2024-11-07 11:24:57,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395715110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:57,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:57,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020155624] [2024-11-07 11:24:57,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:57,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:57,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:57,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:57,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:57,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 11:24:57,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-07 11:24:57,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:57,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 11:24:57,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:57,441 INFO L124 PetriNetUnfolderBase]: 228/551 cut-off events. [2024-11-07 11:24:57,442 INFO L125 PetriNetUnfolderBase]: For 294/297 co-relation queries the response was YES. [2024-11-07 11:24:57,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 551 events. 228/551 cut-off events. For 294/297 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2777 event pairs, 49 based on Foata normal form. 28/569 useless extension candidates. Maximal degree in co-relation 857. Up to 181 conditions per place. [2024-11-07 11:24:57,448 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 45 selfloop transitions, 15 changer transitions 8/87 dead transitions. [2024-11-07 11:24:57,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 87 transitions, 420 flow [2024-11-07 11:24:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:24:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:24:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-11-07 11:24:57,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6808510638297872 [2024-11-07 11:24:57,452 INFO L175 Difference]: Start difference. First operand has 50 places, 52 transitions, 172 flow. Second operand 5 states and 160 transitions. [2024-11-07 11:24:57,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 87 transitions, 420 flow [2024-11-07 11:24:57,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 87 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 11:24:57,458 INFO L231 Difference]: Finished difference. Result has 56 places, 59 transitions, 268 flow [2024-11-07 11:24:57,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=268, PETRI_PLACES=56, PETRI_TRANSITIONS=59} [2024-11-07 11:24:57,458 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2024-11-07 11:24:57,459 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 59 transitions, 268 flow [2024-11-07 11:24:57,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-07 11:24:57,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:57,459 INFO L204 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] [2024-11-07 11:24:57,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:24:57,459 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:57,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash -920752387, now seen corresponding path program 3 times [2024-11-07 11:24:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:57,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32846138] [2024-11-07 11:24:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:57,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:57,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32846138] [2024-11-07 11:24:57,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32846138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:57,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:57,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:24:57,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501239284] [2024-11-07 11:24:57,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:57,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:24:57,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:57,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:24:57,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:24:57,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-07 11:24:57,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-07 11:24:57,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:57,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-07 11:24:57,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:57,819 INFO L124 PetriNetUnfolderBase]: 204/571 cut-off events. [2024-11-07 11:24:57,819 INFO L125 PetriNetUnfolderBase]: For 586/607 co-relation queries the response was YES. [2024-11-07 11:24:57,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 571 events. 204/571 cut-off events. For 586/607 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3300 event pairs, 138 based on Foata normal form. 5/549 useless extension candidates. Maximal degree in co-relation 966. Up to 285 conditions per place. [2024-11-07 11:24:57,823 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 33 selfloop transitions, 0 changer transitions 21/79 dead transitions. [2024-11-07 11:24:57,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 470 flow [2024-11-07 11:24:57,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:24:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:24:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-07 11:24:57,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.675531914893617 [2024-11-07 11:24:57,826 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 268 flow. Second operand 4 states and 127 transitions. [2024-11-07 11:24:57,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 470 flow [2024-11-07 11:24:57,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 79 transitions, 456 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-07 11:24:57,831 INFO L231 Difference]: Finished difference. Result has 61 places, 58 transitions, 262 flow [2024-11-07 11:24:57,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=61, PETRI_TRANSITIONS=58} [2024-11-07 11:24:57,833 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 13 predicate places. [2024-11-07 11:24:57,833 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 58 transitions, 262 flow [2024-11-07 11:24:57,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-07 11:24:57,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:57,833 INFO L204 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] [2024-11-07 11:24:57,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 11:24:57,833 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:57,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:57,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1442935031, now seen corresponding path program 1 times [2024-11-07 11:24:57,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:57,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899390161] [2024-11-07 11:24:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:57,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:57,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:57,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:57,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899390161] [2024-11-07 11:24:57,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899390161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:57,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:57,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:24:57,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698153319] [2024-11-07 11:24:57,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:57,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 11:24:57,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:57,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 11:24:57,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 11:24:57,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 11:24:57,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 58 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-07 11:24:57,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:57,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 11:24:57,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:58,003 INFO L124 PetriNetUnfolderBase]: 196/509 cut-off events. [2024-11-07 11:24:58,003 INFO L125 PetriNetUnfolderBase]: For 633/636 co-relation queries the response was YES. [2024-11-07 11:24:58,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 509 events. 196/509 cut-off events. For 633/636 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2606 event pairs, 63 based on Foata normal form. 9/512 useless extension candidates. Maximal degree in co-relation 1386. Up to 245 conditions per place. [2024-11-07 11:24:58,010 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 45 selfloop transitions, 8 changer transitions 3/74 dead transitions. [2024-11-07 11:24:58,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 445 flow [2024-11-07 11:24:58,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 11:24:58,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 11:24:58,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-07 11:24:58,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-07 11:24:58,015 INFO L175 Difference]: Start difference. First operand has 61 places, 58 transitions, 262 flow. Second operand 3 states and 102 transitions. [2024-11-07 11:24:58,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 445 flow [2024-11-07 11:24:58,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 415 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-07 11:24:58,023 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 300 flow [2024-11-07 11:24:58,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=60, PETRI_TRANSITIONS=61} [2024-11-07 11:24:58,024 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2024-11-07 11:24:58,024 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 300 flow [2024-11-07 11:24:58,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-07 11:24:58,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:58,024 INFO L204 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] [2024-11-07 11:24:58,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 11:24:58,024 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:58,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:58,025 INFO L85 PathProgramCache]: Analyzing trace with hash 838552683, now seen corresponding path program 2 times [2024-11-07 11:24:58,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:58,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083873766] [2024-11-07 11:24:58,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:58,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:58,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:58,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083873766] [2024-11-07 11:24:58,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083873766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:58,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:58,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:24:58,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493309492] [2024-11-07 11:24:58,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:58,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:24:58,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:58,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:24:58,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:24:58,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 11:24:58,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-07 11:24:58,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:58,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 11:24:58,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:58,302 INFO L124 PetriNetUnfolderBase]: 136/378 cut-off events. [2024-11-07 11:24:58,302 INFO L125 PetriNetUnfolderBase]: For 768/774 co-relation queries the response was YES. [2024-11-07 11:24:58,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 378 events. 136/378 cut-off events. For 768/774 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1848 event pairs, 14 based on Foata normal form. 15/382 useless extension candidates. Maximal degree in co-relation 1078. Up to 170 conditions per place. [2024-11-07 11:24:58,305 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 36 selfloop transitions, 19 changer transitions 10/81 dead transitions. [2024-11-07 11:24:58,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 81 transitions, 521 flow [2024-11-07 11:24:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:24:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:24:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-11-07 11:24:58,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6063829787234043 [2024-11-07 11:24:58,306 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 300 flow. Second operand 6 states and 171 transitions. [2024-11-07 11:24:58,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 81 transitions, 521 flow [2024-11-07 11:24:58,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 499 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-07 11:24:58,310 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 365 flow [2024-11-07 11:24:58,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-11-07 11:24:58,311 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-07 11:24:58,311 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 365 flow [2024-11-07 11:24:58,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-07 11:24:58,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:58,312 INFO L204 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] [2024-11-07 11:24:58,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 11:24:58,312 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:58,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:58,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1828750653, now seen corresponding path program 1 times [2024-11-07 11:24:58,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:58,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380032220] [2024-11-07 11:24:58,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:58,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:58,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:58,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380032220] [2024-11-07 11:24:58,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380032220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:58,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:58,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:24:58,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551297939] [2024-11-07 11:24:58,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:58,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:24:58,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:58,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:24:58,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:24:58,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-07 11:24:58,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-07 11:24:58,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:58,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-07 11:24:58,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:58,473 INFO L124 PetriNetUnfolderBase]: 71/238 cut-off events. [2024-11-07 11:24:58,474 INFO L125 PetriNetUnfolderBase]: For 739/753 co-relation queries the response was YES. [2024-11-07 11:24:58,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 238 events. 71/238 cut-off events. For 739/753 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 968 event pairs, 23 based on Foata normal form. 7/237 useless extension candidates. Maximal degree in co-relation 738. Up to 122 conditions per place. [2024-11-07 11:24:58,476 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 34 selfloop transitions, 8 changer transitions 2/62 dead transitions. [2024-11-07 11:24:58,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 62 transitions, 431 flow [2024-11-07 11:24:58,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:24:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:24:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-07 11:24:58,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648936170212766 [2024-11-07 11:24:58,477 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 365 flow. Second operand 4 states and 122 transitions. [2024-11-07 11:24:58,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 62 transitions, 431 flow [2024-11-07 11:24:58,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 62 transitions, 391 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-07 11:24:58,480 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 303 flow [2024-11-07 11:24:58,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=303, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-07 11:24:58,481 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-07 11:24:58,481 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 303 flow [2024-11-07 11:24:58,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-07 11:24:58,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:24:58,481 INFO L204 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] [2024-11-07 11:24:58,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 11:24:58,482 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:24:58,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:24:58,482 INFO L85 PathProgramCache]: Analyzing trace with hash -755118249, now seen corresponding path program 2 times [2024-11-07 11:24:58,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:24:58,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801820010] [2024-11-07 11:24:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:24:58,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:24:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:24:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:24:58,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:24:58,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801820010] [2024-11-07 11:24:58,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801820010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:24:58,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:24:58,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:24:58,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715353451] [2024-11-07 11:24:58,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:24:58,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:24:58,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:24:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:24:58,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:24:58,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-07 11:24:58,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 303 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-11-07 11:24:58,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:24:58,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-07 11:24:58,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:24:58,855 INFO L124 PetriNetUnfolderBase]: 98/285 cut-off events. [2024-11-07 11:24:58,855 INFO L125 PetriNetUnfolderBase]: For 561/561 co-relation queries the response was YES. [2024-11-07 11:24:58,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 285 events. 98/285 cut-off events. For 561/561 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1158 event pairs, 10 based on Foata normal form. 1/283 useless extension candidates. Maximal degree in co-relation 839. Up to 99 conditions per place. [2024-11-07 11:24:58,857 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2024-11-07 11:24:58,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 74 transitions, 513 flow [2024-11-07 11:24:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:24:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:24:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2024-11-07 11:24:58,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.541033434650456 [2024-11-07 11:24:58,858 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 303 flow. Second operand 7 states and 178 transitions. [2024-11-07 11:24:58,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 74 transitions, 513 flow [2024-11-07 11:24:58,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 74 transitions, 475 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-07 11:24:58,861 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-07 11:24:58,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-07 11:24:58,862 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-07 11:24:58,862 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-07 11:24:58,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-11-07 11:24:58,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-07 11:24:58,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-07 11:24:58,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-07 11:24:58,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 11:24:58,865 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1] [2024-11-07 11:24:58,867 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 11:24:58,867 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 11:24:58,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:24:58 BasicIcfg [2024-11-07 11:24:58,870 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 11:24:58,871 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 11:24:58,871 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 11:24:58,871 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 11:24:58,872 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:24:55" (3/4) ... [2024-11-07 11:24:58,873 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 11:24:58,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 11:24:58,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 11:24:58,878 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2024-11-07 11:24:58,878 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-07 11:24:58,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-07 11:24:58,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 11:24:58,928 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 11:24:58,928 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 11:24:58,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 11:24:58,929 INFO L158 Benchmark]: Toolchain (without parser) took 3925.75ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 50.7MB in the end (delta: 66.7MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2024-11-07 11:24:58,929 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:24:58,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.64ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 105.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:24:58,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.45ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:24:58,930 INFO L158 Benchmark]: Boogie Preprocessor took 23.97ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:24:58,930 INFO L158 Benchmark]: RCFGBuilder took 502.02ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 74.5MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-07 11:24:58,930 INFO L158 Benchmark]: TraceAbstraction took 3092.27ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 56.4MB in the end (delta: 17.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-11-07 11:24:58,930 INFO L158 Benchmark]: Witness Printer took 57.50ms. Allocated memory is still 142.6MB. Free memory was 56.4MB in the beginning and 50.7MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:24:58,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.64ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 105.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.45ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.97ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 102.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 502.02ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 74.5MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3092.27ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 56.4MB in the end (delta: 17.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 57.50ms. Allocated memory is still 142.6MB. Free memory was 56.4MB in the beginning and 50.7MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 69 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: 3.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 622 IncrementalHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 13 mSDtfsCounter, 622 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=365occurred in iteration=6, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2024-11-07 11:24:58,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE